diff --git a/Readme.md b/Readme.md
index 4d97407..b6ba5f4 100644
--- a/Readme.md
+++ b/Readme.md
@@ -41,7 +41,7 @@ tsserver understand your code.
 installation.
 
 **Note:** tsserver could be quite slow to initialize on big project, exclude
-unneunnecessary files in your jsconfig.json/tsconfig.json.
+unnecessary files in your jsconfig.json/tsconfig.json.
 
 **Note:** if you're using WSL, copy you project files from mounted dirs to linux home otherwise tsserver will not work properly.
 
@@ -100,10 +100,19 @@ Almost the same as VSCode.
 - Code refactor using code actions.
 - Find references.
 - Signature help.
+- Call hierarchy.
+- Selection range.
+- Semantic tokens.
 - Rename symbols support.
+- Automatic tag closing.
 - Rename imports on file rename, require
   [watchman](https://facebook.github.io/watchman/) installed in your \$PATH.
 - Search for workspace symbols.
+- Inlay hints support using virtual text feature of neovim, which requires:
+  - TypeScript >= 4.4.0
+  - Neovim >= 0.4.0
+  - Enabled by options starts with `typescript.inlayHints` or
+    `javascript.inlayHints`.
 
 Tsserver module first resolved from your local workspace. If it's not found, use
 tsserver from `tsserver.tsdk` configuration or use bundled tsserver with this
@@ -117,6 +126,8 @@ for guide of coc.nvim's configuration.
 
 - `tsserver.enable`:Enable tsserver extension, default: `true`
 - `tsserver.locale`:Locale of tsserver, default: `""`
+- `tsserver.ignoreLocalTsserver`:Always use tsserver module from tsserver.tsdk
+  or coc-tsserver extension.
 - `tsserver.typingsCacheLocation`:Folder path for cache typings, default: `""`
 - `tsserver.formatOnType`:Run format on type special characters., default:
   `true`
@@ -128,10 +139,9 @@ for guide of coc.nvim's configuration.
 - `tsserver.log`:Log level of tsserver, default: `"off"`
 - `tsserver.trace.server`:Trace level of tsserver, default: `"off"`
 - `tsserver.pluginPaths`:Folders contains tsserver plugins, default: `[]`
-- `tsserver.debugPort`:Debug port number of tsserver
 - `tsserver.watchOptions`:Configure which watching strategies should be used to
   keep track of files and directories. Requires using TypeScript 3.8+ in the
-  workspace, default: undefined.
+  workspace, default: `undefined`
 - `tsserver.reportStyleChecksAsWarnings` default: `true`
 - `tsserver.implicitProjectConfig.checkJs`:Enable checkJs for implicit project,
   default: `false`
@@ -139,27 +149,38 @@ for guide of coc.nvim's configuration.
   experimentalDecorators for implicit project, default: `false`
 - `tsserver.disableAutomaticTypeAcquisition`:Disable download of typings,
   default: `false`
-- `tsserver.useBatchedBufferSync`: use batched buffer synchronize support.
+- `tsserver.useBatchedBufferSync`: use batched buffer synchronize support, default: `true`
+- `tsserver.enableTracing`: Enables tracing TS server performance to a
+  directory. These trace files can be used to diagnose TS Server performance
+  issues. The log may contain file paths, source code, and other potentially
+  sensitive information from your project, default: `false`
+- `typescript.check.npmIsInstalled`: Check if npm is installed for [Automatic
+  Type
+  Acquisition](https://code.visualstudio.com/docs/nodejs/working-with-javascript#_typings-and-automatic-type-acquisition).
 - `typescript.updateImportsOnFileMove.enable`:Enable update imports on file
   move., default: `true`
 - `typescript.implementationsCodeLens.enable`:Enable codeLens for
   implementations, default: `true`
 - `typescript.referencesCodeLens.enable`:Enable codeLens for references,
   default: `true`
-- `typescript.preferences.importModuleSpecifier` default: `"auto"`
+- `typescript.referencesCodeLens.showOnAllFunctions`: Enable/disable references CodeLens on all functions in typescript files. Default: `false`
+- `typescript.preferences.importModuleSpecifier` default: `"shortest"`
 - `typescript.preferences.importModuleSpecifierEnding` default: `"auto"`
 - `typescript.preferences.quoteStyle` default: `"single"`
+- `typescript.preferences.includePackageJsonAutoImports`: Enable/disable
+  searching `package.json` dependencies for available auto imports, default:
+  `"auto"`
 - `typescript.suggestionActions.enabled`:Enable/disable suggestion diagnostics
   for TypeScript files in the editor. Requires using TypeScript 2.8 or newer in
   the workspace., default: `true`
 - `typescript.validate.enable`:Enable/disable TypeScript validation., default:
   `true`
 - `typescript.showUnused`: show unused variable hint, default: `true`.
-- `typescript.autoClosingTags`: Enable/disable autoClosing of JSX tags, default: `false`.
+- `typescript.autoClosingTags`: Enable/disable autoClosing of JSX tags, default: `true`
 - `typescript.suggest.enabled` default: `true`
 - `typescript.suggest.paths`:Enable/disable suggest paths in import statement
   and require calls, default: `true`
-- `typescript.suggest.autoImports`:Enable/disable auto import suggests.,
+- `typescript.suggest.autoImports`:Enable/disable auto import suggests,
   default: `true`
 - `typescript.suggest.completeFunctionCalls`:Enable snippet for method
   suggestion, default: `true`
@@ -168,6 +189,13 @@ for guide of coc.nvim's configuration.
   TypeScript 4.3+ in the workspace, default: `true`
 - `typescript.suggest.includeCompletionsWithSnippetText`: Enable snippet completions
   from TS Server. Requires using TypeScript 4.3+ in the workspace, default: `true`
+- `typescript.suggest.classMemberSnippets.enabled`: Enable/disable
+  snippet completions for class members. Requires using TypeScript 4.5+ in the
+  workspace, default: `true`
+- `typescript.suggest.jsdoc.generateReturns`: Enable/disable generating
+  `@return` annotations for JSDoc templates. Requires using TypeScript 4.2+ in
+  the workspace. default: `true`
+- `typescript.suggest.includeAutomaticOptionalChainCompletions`: default: `true`
 - `typescript.format.enabled`:Enable/disable format of typescript files.
 - `typescript.format.insertSpaceAfterCommaDelimiter` default: `true`
 - `typescript.format.insertSpaceAfterConstructor` default: `false`
@@ -193,14 +221,15 @@ for guide of coc.nvim's configuration.
 - `typescript.format.insertSpaceAfterTypeAssertion` default: `false`
 - `typescript.format.placeOpenBraceOnNewLineForFunctions` default: `false`
 - `typescript.format.placeOpenBraceOnNewLineForControlBlocks` default: `false`
-- `typescript.suggest.includeAutomaticOptionalChainCompletions`: default: `true`
-- `javascript.format.enabled`: Enable/disable format for javascript files.
-- `javascript.showUnused`: show unused variable hint.
-- `javascript.autoClosingTags`: Enable/disable autoClosing of JSX tags, default: `false`.
+- `typescript.inlayHints`: inlayHints related options.
+- `javascript.format.enabled`: Enable/disable format for javascript files, default: `true`
+- `javascript.showUnused`: show unused variable hint, default: `true`
+- `javascript.autoClosingTags`: Enable/disable autoClosing of JSX tags, default: `true`
 - `javascript.updateImportsOnFileMove.enable` default: `true`
 - `javascript.implementationsCodeLens.enable` default: `true`
 - `javascript.referencesCodeLens.enable` default: `true`
-- `javascript.preferences.importModuleSpecifier` default: `"auto"`
+- `javascript.referencesCodeLens.showOnAllFunctions`: Enable/disable references CodeLens on all functions in JavaScript files default: `false`
+- `javascript.preferences.importModuleSpecifier` default: `"shortest"`
 - `javascript.preferences.importModuleSpecifierEnding` default: `"auto"`
 - `javascript.preferences.quoteStyle` default: `"single"`
 - `javascript.validate.enable`: Enable/disable JavaScript validation., default:
@@ -219,6 +248,13 @@ for guide of coc.nvim's configuration.
 - `javascript.suggest.includeCompletionsForImportStatements`: Enable/disable
   auto-import-style completions on partially-typed import statements. Requires
   using TypeScript 4.3+ in the workspace, default: `true`
+- `javascript.suggest.jsdoc.generateReturns`: Enable/disable generating
+  `@return` annotations for JSDoc templates. Requires using TypeScript 4.2+ in
+  the workspace. default: `true`
+- `javascript.suggest.classMemberSnippets.enabled`: Enable/disable
+  snippet completions for class members. Requires using TypeScript 4.5+ in the
+  workspace, default: `true`
+- `javascript.suggest.includeAutomaticOptionalChainCompletions`: default: `true`
 - `javascript.format.insertSpaceAfterCommaDelimiter` default: `true`
 - `javascript.format.insertSpaceAfterConstructor` default: `false`
 - `javascript.format.insertSpaceAfterSemicolonInForStatements` default: `true`
@@ -243,10 +279,22 @@ for guide of coc.nvim's configuration.
 - `javascript.format.insertSpaceAfterTypeAssertion` default: `false`
 - `javascript.format.placeOpenBraceOnNewLineForFunctions` default: `false`
 - `javascript.format.placeOpenBraceOnNewLineForControlBlocks` default: `false`
-- `javascript.suggest.includeAutomaticOptionalChainCompletions`: default: `true`
+- `javascript.inlayHints`: inlayHints related options.
 
-Configurations are the same as with VSCode. Try completion with `tsserver`,
-`typescript` or `javascript` in your `coc-settings.json`.
+### Added on 1.10.0
+
+- `javascript.suggest.completeJSDocs` `typescript.suggest.completeJSDocs`:
+  Enable/disable suggestion to complete JSDoc comments. default: `true`
+
+### Added on 1.10.1
+- `typescript.suggest.objectLiteralMethodSnippets.enabled`
+  `javascript.suggest.objectLiteralMethodSnippets.enabled`:
+  Enable/disable snippet completions for methods in object literals. Requires using TypeScript 4.7+ in the workspace
+
+Configurations are the same as with VSCode. Install
+[coc-json](https://github.com/neoclide/coc-json) and try completion with
+`tsserver`, `typescript` or `javascript` in your
+`coc-settings.json`.
 
 ## Related extensions
 
diff --git a/bin/tsserverForkStart.js b/bin/tsserverForkStart.js
deleted file mode 100644
index 22abfa6..0000000
--- a/bin/tsserverForkStart.js
+++ /dev/null
@@ -1,161 +0,0 @@
-/*---------------------------------------------------------------------------------------------
- *  Copyright (c) Microsoft Corporation. All rights reserved.
- *  Licensed under the MIT License. See License.txt in the project root for license information.
- *--------------------------------------------------------------------------------------------*/
-let net = require('net');
-let fs = require('fs');
-let ENABLE_LOGGING = false;
-let log = (function () {
-    if (!ENABLE_LOGGING) {
-        return function () { }; // tslint:disable-line
-    }
-    let isFirst = true;
-    let LOG_LOCATION = 'C:\\stdFork.log';
-    return function log(str) {
-        if (isFirst) {
-            isFirst = false;
-            fs.writeFileSync(LOG_LOCATION, str + '\n');
-            return;
-        }
-        fs.appendFileSync(LOG_LOCATION, str + '\n');
-    };
-})();
-let stdInPipeName = process.env['STDIN_PIPE_NAME']; // tslint:disable-line
-let stdOutPipeName = process.env['STDOUT_PIPE_NAME']; // tslint:disable-line
-let stdErrPipeName = process.env['STDERR_PIPE_NAME']; // tslint:disable-line
-log('STDIN_PIPE_NAME: ' + stdInPipeName);
-log('STDOUT_PIPE_NAME: ' + stdOutPipeName);
-log('STDERR_PIPE_NAME: ' + stdErrPipeName);
-(function () {
-    log('Beginning stdout redirection...');
-    // Create a writing stream to the stdout pipe
-    let stdOutStream = net.connect(stdOutPipeName);
-    // unref stdOutStream to behave like a normal standard out
-    stdOutStream.unref();
-    process.__defineGetter__('stdout', function () {
-        return stdOutStream;
-    });
-    // Create a writing stream to the stderr pipe
-    let stdErrStream = net.connect(stdErrPipeName);
-    // unref stdErrStream to behave like a normal standard out
-    stdErrStream.unref();
-    process.__defineGetter__('stderr', function () {
-        return stdErrStream;
-    });
-    let fsWriteSyncString = function (// tslint:disable-line
-    fd, str, _position, encoding) {
-        //  fs.writeSync(fd, string[, position[, encoding]])
-        let buf = Buffer.from(str, encoding || 'utf8');
-        return fsWriteSyncBuffer(fd, buf, 0, buf.length); // tslint:disable-line
-    };
-    let fsWriteSyncBuffer = function (// tslint:disable-line
-    fd, buffer, off, len) {
-        off = Math.abs(off | 0);
-        len = Math.abs(len | 0);
-        //  fs.writeSync(fd, buffer, offset, length[, position])
-        let buffer_length = buffer.length;
-        if (off > buffer_length) {
-            throw new Error('offset out of bounds');
-        }
-        if (len > buffer_length) {
-            throw new Error('length out of bounds');
-        }
-        if (((off + len) | 0) < off) {
-            throw new Error('off + len overflow');
-        }
-        if (buffer_length - off < len) {
-            // Asking for more than is left over in the buffer
-            throw new Error('off + len > buffer.length');
-        }
-        let slicedBuffer = buffer;
-        if (off !== 0 || len !== buffer_length) {
-            slicedBuffer = buffer.slice(off, off + len);
-        }
-        if (fd === 1) {
-            stdOutStream.write(slicedBuffer);
-        }
-        else {
-            stdErrStream.write(slicedBuffer);
-        }
-        return slicedBuffer.length;
-    };
-    // handle fs.writeSync(1, ...)
-    let originalWriteSync = fs.writeSync;
-    fs.writeSync = function (// tslint:disable-line
-    fd, data, _position, _encoding) {
-        if (fd !== 1 && fd !== 2) {
-            return originalWriteSync.apply(fs, arguments);
-        }
-        // usage:
-        //  fs.writeSync(fd, buffer, offset, length[, position])
-        // OR
-        //  fs.writeSync(fd, string[, position[, encoding]])
-        if (data instanceof Buffer) {
-            return fsWriteSyncBuffer.apply(null, arguments);
-        }
-        // For compatibility reasons with fs.writeSync, writing null will write "null", etc
-        if (typeof data !== 'string') {
-            data += '';
-        }
-        return fsWriteSyncString.apply(null, arguments);
-    };
-    log('Finished defining process.stdout, process.stderr and fs.writeSync');
-})();
-(function () {
-    // Begin listening to stdin pipe
-    let server = net.createServer(function (stream) {
-        // Stop accepting new connections, keep the existing one alive
-        server.close();
-        log('Parent process has connected to my stdin. All should be good now.');
-        process.__defineGetter__('stdin', function () {
-            return stream;
-        });
-        // Remove myself from process.argv
-        process.argv.splice(1, 1);
-        // Load the actual program
-        let program = process.argv[1];
-        log('Loading program: ' + program);
-        // Unset the custom environmental variables that should not get inherited
-        delete process.env['STDIN_PIPE_NAME']; // tslint:disable-line
-        delete process.env['STDOUT_PIPE_NAME']; // tslint:disable-line
-        delete process.env['STDERR_PIPE_NAME']; // tslint:disable-line
-        require(program);
-        log('Finished loading program.');
-        let stdinIsReferenced = true;
-        let timer = setInterval(function () {
-            let listenerCount = stream.listeners('data').length +
-                stream.listeners('end').length +
-                stream.listeners('close').length +
-                stream.listeners('error').length;
-            // log('listenerCount: ' + listenerCount)
-            if (listenerCount <= 1) {
-                // No more "actual" listeners, only internal node
-                if (stdinIsReferenced) {
-                    stdinIsReferenced = false;
-                    // log('unreferencing stream!!!')
-                    stream.unref();
-                }
-            }
-            else {
-                // There are "actual" listeners
-                if (!stdinIsReferenced) {
-                    stdinIsReferenced = true;
-                    stream.ref();
-                }
-            }
-            // log(
-            // 	'' + stream.listeners('data').length +
-            // 	' ' + stream.listeners('end').length +
-            // 	' ' + stream.listeners('close').length +
-            // 	' ' + stream.listeners('error').length
-            // )
-        }, 1000);
-        if (timer.unref) { // tslint:disable-line
-            timer.unref(); // tslint:disable-line
-        }
-    });
-    server.listen(stdInPipeName, function () {
-        // signal via stdout that the parent process can now begin writing to stdin pipe
-        process.stdout.write('ready');
-    });
-})();
diff --git a/history.md b/history.md
new file mode 100644
index 0000000..a9a19c7
--- /dev/null
+++ b/history.md
@@ -0,0 +1,260 @@
+# 1.10.5
+
+- Fix a fold issue #380
+
+# 1.10.2
+
+- Fix snippet completion not work for optional complete item.
+
+# 1.10.1
+
+- Avoid unnecessary fetch of format option.
+- Add `typescript.suggest.objectLiteralMethodSnippets.enabled`
+
+# 1.10.0
+
+- Support jsdoc completion.
+- Add configurations `javascript.suggest.completeJSDocs` and `typescript.suggest.completeJSDocs`.
+
+# 1.9.15
+
+- Fix uri for `zipfile`.
+
+# 1.9.14
+
+- Add javascript snippets
+- Fix command `tsserver.restart` not work
+
+# 1.9.11
+
+- Resued resolved tsserver path after `:CocRestart`
+
+# 1.9.10
+
+- Watch for `tsserver.enable` configuration to change service state.
+- Fix tsserver not work well with `:CocList services`
+
+# 1.9.9
+
+- Use documentChanges for workspaceEdit.
+
+# 1.9.8
+
+- Log to output when document content exceed limit of semantic tokens.
+
+# 1.9.7
+
+- Change default of `javascript.autoClosingTags` and `typescript.autoClosingTags` to `true`.
+
+# 1.9.6
+
+- Rework codeLens related.
+
+# 1.9.5
+
+- Change 'allImportsAreUnused' diagnostic kind to warning.
+
+# 1.9.4
+
+- Improve file pattern for config file.
+
+# 1.9.2
+
+- Inlay hints support (#335)
+
+# 1.9.1
+
+- use `TSS_DEBUG` & `TSS_DEBUG_BRK` for debug port
+
+# 1.9.0
+
+- Add semanticTokens support #313
+- Add jsxAttributeCompletionStyle settings #319
+- Add command `tsserver.sortImports` #322
+- Add suggest.classMemberSnippets.enabled configuration cd16da8
+- Add suggest.jsdoc.generateReturns configuration 5a8c68f
+- Add typescript.preferences.includePackageJsonAutoImports configuration 4d78b61
+- Add tsserver.enableTracing configuration 43e6f62
+- Add typescript.check.npmIsInstalled configuration 3bd84b1
+
+# 1.8.3
+
+- Support deprecated tag for document symbols, diagnostic, workspace symbols.
+
+# 1.8.2
+
+- Support call hierarchy.
+- Support `tags` and access modifier for document symbols.
+- Support return `DefinitionLink[]` for definition provider.
+
+# 1.8.1
+
+- Support `tsserver.tsconfigPath` configuration.
+
+# 1.8.0
+
+- Support [Import Statement Completions](https://devblogs.microsoft.com/typescript/announcing-typescript-4-3/#import-statement-completions)
+
+# 1.7.0
+
+- Support tag closing for JSX
+
+# 1.6.4
+
+- Support `typescript.format.insertSpaceAfterOpeningAndBeforeClosingEmptyBraces` and `ypescript.format.insertSpaceAfterOpeningAndBeforeClosingEmptyBraces`
+
+# 1.6.2
+
+- Support languages from plugins.
+
+# 1.5.5
+
+- Support `typescript.preferences.useAliasesForRenames` and `javascript.preferences.useAliasesForRenames`
+
+# 1.5.3
+
+- Support the new path of Yarn v2 pnpify SDK.
+- Us `tsserver.pluginPaths` replace `tsserver.pluginRoot`.
+
+# 1.5.0
+
+- Support @ts-expect-error directive on tsserver v390.
+- Support `tsserver.watchOptions` configuration.
+
+# 1.4.13
+
+- Add `preferences.importModuleSpecifierEnding` configuration.
+- Change `preferences.importModuleSpecifier` default to `auto`.
+
+# 1.4.12
+
+- Support `tsserver.maxTsServerMemory` configuration.
+
+# 1.4.9
+
+- Support semicolons format option.
+
+# 1.4.8
+
+- support `format.enabled` configuration
+
+# 1.4.3
+
+- Use global tsc when local tsc not foun
+
+# 1.4.0
+
+- remove noSemicolons preferences
+
+# 1.3.15
+
+- Add missing option "auto" to importModuleSpecifier
+
+# 1.3.11
+
+- Add `tsserver.ignoreLocalTsserver` configuration.
+
+# 1.3.6
+
+- Support `b:coc_tsserver_disable`
+
+# 1.3.2
+
+- fix suggestionActions.enabled configuration not working
+
+# 1.3.1
+
+- fix validate.enable not work sometimes
+
+# 1.3.0
+
+- Loading status.
+- Batched buffer synchronize.
+- Configuration for showUnused variable.
+- Smart selection support.
+- Support 'auto' as quoteStyle.
+- Support 'validateDefaultNpmLocation'.
+
+# 1.1.30
+
+- rework of typescriptService, support interuptGetErr
+
+# 1.1.29
+
+- Support plugin feature.
+
+# 1.1.28
+
+- add codeAction provider for import missing node builtin modules.
+
+# 1.1.26
+
+- Add install module codeAction for module not found diagnostic.
+- Rework `tsserver.watchBuild`, use background process, support statusline.
+
+# 1.1.25
+
+- Support autofix of node modules import
+
+# 1.1.23
+
+- Add command `tsserver.executeAutofix`
+
+# 1.1.13
+
+- Add triggerCharacters for SignatureHelp
+
+# 1.1.12
+
+- Add typescript snippets from VSCode
+
+# 1.1.11
+
+- Fix throw error of "No content available" on completion.
+
+# 1.1.10
+
+- Support projectRootPath for document
+
+# 1.1.9
+
+- Support commitCharacters of completion items
+
+# 1.1.8
+
+- Add status bar support.
+
+# 1.1.7
+
+- Add settings `javascript.validate.enable` and `typescript.validate.enable`
+
+# 1.1.6
+
+- Fix suggestionActions.enabled not works
+
+# 1.1.5
+
+- Use quickfix list for watchBuild errors
+
+# 1.1.4
+
+- Fix organizeImports not working sometimes
+
+# 1.1.3
+
+- Remove settings with `commaAfterImport`, use `typescript.preferences.noSemicolons` and `javasscript.preferences.noSemicolons` instead.
+
+# 1.1.2
+
+- Support diagnostic of config file.
+
+# 1.1.1
+
+- Remove unnecessary use of workspace terminal.
+
+# 1.1.0
+
+- Support rename import path: https://code.visualstudio.com/updates/v1_28#_rename-import-path
+- Use new `suggest` for completion configuration: https://code.visualstudio.com/updates/v1_28#_new-settings-for-jsts-suggestions
+- Convert to async function: https://code.visualstudio.com/updates/v1_28#_convert-to-async-function
+- Remove semicolons on format: set `typescript.preferences.noSemicolons` to true
diff --git a/package.json b/package.json
index b09a907..749c97c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "coc-tsserver",
-  "version": "1.8.6",
+  "version": "1.10.5",
   "description": "tsserver extension for coc.nvim",
   "main": "lib/index.js",
   "publisher": "chemzqm",
@@ -224,6 +224,12 @@
           ],
           "description": "Trace level of tsserver"
         },
+        "tsserver.enableTracing": {
+          "type": "boolean",
+          "default": false,
+          "description": "Enables tracing TS server performance to a directory. These trace files can be used to diagnose TS Server performance issues. The log may contain file paths, source code, and other potentially sensitive information from your project.",
+          "scope": "window"
+        },
         "tsserver.pluginPaths": {
           "type": "array",
           "default": [],
@@ -232,10 +238,6 @@
           },
           "description": "Folders contains tsserver plugins"
         },
-        "tsserver.debugPort": {
-          "type": "number",
-          "description": "Debug port number of tsserver"
-        },
         "tsserver.reportStyleChecksAsWarnings": {
           "type": "boolean",
           "default": true
@@ -260,6 +262,12 @@
           "default": true,
           "description": "Use batched buffer sync support."
         },
+        "typescript.check.npmIsInstalled": {
+          "type": "boolean",
+          "default": true,
+          "markdownDescription": "Check if npm is installed for [Automatic Type Acquisition](https://code.visualstudio.com/docs/nodejs/working-with-javascript#_typings-and-automatic-type-acquisition).",
+          "scope": "window"
+        },
         "typescript.showUnused": {
           "type": "boolean",
           "default": true,
@@ -285,6 +293,12 @@
           "default": true,
           "description": "Enable codeLens for references"
         },
+        "typescript.referencesCodeLens.showOnAllFunctions": {
+          "type": "boolean",
+          "default": false,
+          "description": "Enable/disable references CodeLens on all functions in typescript files.",
+          "scope": "window"
+        },
         "typescript.preferences.importModuleSpecifier": {
           "type": "string",
           "default": "shortest",
@@ -314,6 +328,38 @@
           "description": "Preferred path ending for auto imports.",
           "scope": "resource"
         },
+        "typescript.preferences.jsxAttributeCompletionStyle": {
+          "type": "string",
+          "enum": [
+            "auto",
+            "braces",
+            "none"
+          ],
+          "markdownEnumDescriptions": [
+            "Insert `={}` or `=\"\"` after attribute names based on the prop type.",
+            "Insert `={}` after attribute names.",
+            "Only insert attribute names."
+          ],
+          "default": "auto",
+          "description": "Preferred style for JSX attribute completions.",
+          "scope": "resource"
+        },
+        "typescript.preferences.includePackageJsonAutoImports": {
+          "type": "string",
+          "enum": [
+            "auto",
+            "on",
+            "off"
+          ],
+          "enumDescriptions": [
+            "Search dependencies based on estimated performance impact.",
+            "Always search dependencies.",
+            "Never search dependencies."
+          ],
+          "default": "auto",
+          "markdownDescription": "Enable/disable searching `package.json` dependencies for available auto imports.",
+          "scope": "window"
+        },
         "typescript.preferences.quoteStyle": {
           "type": "string",
           "default": "auto",
@@ -374,6 +420,18 @@
           "description": "Enable/disable snippet completions from TS Server. Requires using TypeScript 4.3+ in the workspace.",
           "scope": "resource"
         },
+        "typescript.suggest.classMemberSnippets.enabled": {
+          "type": "boolean",
+          "default": true,
+          "description": "Enable/disable snippet completions for class members. Requires using TypeScript 4.5+ in the workspace",
+          "scope": "resource"
+        },
+        "typescript.suggest.jsdoc.generateReturns": {
+          "type": "boolean",
+          "default": true,
+          "markdownDescription": "Enable/disable generating `@return` annotations for JSDoc templates. Requires using TypeScript 4.2+ in the workspace.",
+          "scope": "resource"
+        },
         "typescript.format.enabled": {
           "type": "boolean",
           "default": true,
@@ -471,7 +529,8 @@
         },
         "typescript.autoClosingTags": {
           "type": "boolean",
-          "default": false
+          "default": true,
+          "description": "Enable/disable automatic closing of JSX tags."
         },
         "javascript.showUnused": {
           "type": "boolean",
@@ -495,6 +554,12 @@
           "type": "boolean",
           "default": true
         },
+        "javascript.referencesCodeLens.showOnAllFunctions": {
+          "type": "boolean",
+          "default": false,
+          "description": "Enable/disable references CodeLens on all functions in JavaScript files.",
+          "scope": "window"
+        },
         "javascript.preferences.importModuleSpecifier": {
           "type": "string",
           "default": "shortest",
@@ -524,6 +589,22 @@
           "description": "Preferred path ending for auto imports.",
           "scope": "resource"
         },
+        "javascript.preferences.jsxAttributeCompletionStyle": {
+          "type": "string",
+          "enum": [
+            "auto",
+            "braces",
+            "none"
+          ],
+          "markdownEnumDescriptions": [
+            "Insert `={}` or `=\"\"` after attribute names based on the prop type.",
+            "Insert `={}` after attribute names.",
+            "Only insert attribute names."
+          ],
+          "default": "auto",
+          "description": "Preferred style for JSX attribute completions.",
+          "scope": "resource"
+        },
         "javascript.preferences.quoteStyle": {
           "type": "string",
           "default": "auto",
@@ -578,6 +659,18 @@
           "description": "Enable/disable auto-import-style completions on partially-typed import statements. Requires using TypeScript 4.3+ in the workspace.",
           "scope": "resource"
         },
+        "javascript.suggest.classMemberSnippets.enabled": {
+          "type": "boolean",
+          "default": true,
+          "description": "Enable/disable snippet completions for class members. Requires using TypeScript 4.5+ in the workspace",
+          "scope": "resource"
+        },
+        "javascript.suggest.jsdoc.generateReturns": {
+          "type": "boolean",
+          "default": true,
+          "markdownDescription": "Enable/disable generating `@return` annotations for JSDoc templates. Requires using TypeScript 4.2+ in the workspace.",
+          "scope": "resource"
+        },
         "javascript.format.enabled": {
           "type": "boolean",
           "default": true,
@@ -650,12 +743,117 @@
         "javascript.suggest.includeAutomaticOptionalChainCompletions": {
           "type": "boolean",
           "default": true,
-          "description": "%configuration.suggest.includeAutomaticOptionalChainCompletions%",
+          "description": "Enable/disable showing completions on potentially undefined values that insert an optional chain call. Requires TS 3.7+ and strict null checks to be enabled.",
+          "scope": "resource"
+        },
+        "typescript.inlayHints.parameterNames.enabled": {
+          "type": "string",
+          "enum": [
+            "none",
+            "literals",
+            "all"
+          ],
+          "enumDescriptions": [
+            "Disable parameter name hints.",
+            "Enable parameter name hints only for literal arguments.",
+            "Enable parameter name hints for literal and non-literal arguments."
+          ],
+          "default": "none",
+          "description": "Enable/disable inlay hints of parameter names.",
+          "scope": "resource"
+        },
+        "typescript.inlayHints.parameterNames.suppressWhenArgumentMatchesName": {
+          "type": "boolean",
+          "default": true,
+          "description": "Suppress parameter name hints on arguments whose text is identical to the parameter name.",
+          "scope": "resource"
+        },
+        "typescript.inlayHints.parameterTypes.enabled": {
+          "type": "boolean",
+          "default": false,
+          "description": "Enable/disable inlay hints of parameter types.",
+          "scope": "resource"
+        },
+        "typescript.inlayHints.variableTypes.enabled": {
+          "type": "boolean",
+          "default": false,
+          "description": "Enable/disable inlay hints of variable types.",
+          "scope": "resource"
+        },
+        "typescript.inlayHints.propertyDeclarationTypes.enabled": {
+          "type": "boolean",
+          "default": false,
+          "description": "Enable/disable inlay hints of property declarations.",
+          "scope": "resource"
+        },
+        "typescript.inlayHints.functionLikeReturnTypes.enabled": {
+          "type": "boolean",
+          "default": false,
+          "description": "Enable/disable inlay hints of return type for function signatures.",
+          "scope": "resource"
+        },
+        "typescript.inlayHints.enumMemberValues.enabled": {
+          "type": "boolean",
+          "default": false,
+          "description": "Enable/disable inlay hints of enum member values.",
+          "scope": "resource"
+        },
+        "javascript.inlayHints.parameterNames.enabled": {
+          "type": "string",
+          "enum": [
+            "none",
+            "literals",
+            "all"
+          ],
+          "enumDescriptions": [
+            "Disable parameter name hints.",
+            "Enable parameter name hints only for literal arguments.",
+            "Enable parameter name hints for literal and non-literal arguments."
+          ],
+          "default": "none",
+          "description": "Enable/disable inlay hints of parameter names.",
+          "scope": "resource"
+        },
+        "javascript.inlayHints.parameterNames.suppressWhenArgumentMatchesName": {
+          "type": "boolean",
+          "default": true,
+          "description": "Suppress parameter name hints on arguments whose text is identical to the parameter name.",
+          "scope": "resource"
+        },
+        "javascript.inlayHints.parameterTypes.enabled": {
+          "type": "boolean",
+          "default": false,
+          "description": "Enable/disable inlay hints of parameter types.",
+          "scope": "resource"
+        },
+        "javascript.inlayHints.variableTypes.enabled": {
+          "type": "boolean",
+          "default": false,
+          "description": "Enable/disable inlay hints of variable types.",
+          "scope": "resource"
+        },
+        "javascript.inlayHints.propertyDeclarationTypes.enabled": {
+          "type": "boolean",
+          "default": false,
+          "description": "Enable/disable inlay hints of property declarations.",
+          "scope": "resource"
+        },
+        "javascript.inlayHints.functionLikeReturnTypes.enabled": {
+          "type": "boolean",
+          "default": false,
+          "description": "Enable/disable inlay hints of return type for function signatures.",
+          "scope": "resource"
+        },
+        "javascript.inlayHints.enumMemberValues.enabled": {
+          "type": "boolean",
+          "default": false,
+          "description": "Enable/disable inlay hints of enum member values.",
           "scope": "resource"
         },
         "javascript.autoClosingTags": {
           "type": "boolean",
-          "default": false
+          "default": true,
+          "description": "Enable/disable automatic closing of JSX tags."
         },
         "javascript.format.semicolons": {
           "type": "string",
@@ -667,6 +865,28 @@
             "insert",
             "remove"
           ]
+        },
+        "javascript.suggest.completeJSDocs": {
+          "type": "boolean",
+          "default": true,
+          "description": "Enable/disable suggestion to complete JSDoc comments."
+        },
+        "typescript.suggest.completeJSDocs": {
+          "type": "boolean",
+          "default": true,
+          "description": "Enable/disable suggestion to complete JSDoc comments."
+        },
+        "javascript.suggest.objectLiteralMethodSnippets.enabled": {
+          "type": "boolean",
+          "default": true,
+          "description": "Enable/disable snippet completions for methods in object literals. Requires using TypeScript 4.7+ in the workspace",
+          "scope": "resource"
+        },
+        "typescript.suggest.objectLiteralMethodSnippets.enabled": {
+          "type": "boolean",
+          "default": true,
+          "description": "Enable/disable snippet completions for methods in object literals. Requires using TypeScript 4.7+ in the workspace",
+          "scope": "resource"
         }
       }
     },
@@ -678,20 +898,28 @@
       {
         "language": "typescriptreact",
         "path": "./snippets/typescript.json"
+      },
+      {
+        "language": "javascript",
+        "path": "./snippets/javascript.json"
+      },
+      {
+        "language": "javascriptreact",
+        "path": "./snippets/javascript.json"
       }
     ]
   },
   "author": "chemzqm@gmail.com",
   "license": "MIT",
   "devDependencies": {
-    "@types/node": "^10.12.0",
-    "coc.nvim": "^0.0.81-next.6",
-    "esbuild": "^0.8.29",
-    "semver": "^7.3.2",
+    "@types/node": "^12.12.12",
+    "coc.nvim": "^0.0.81-next.25",
+    "esbuild": "^0.14.11",
+    "semver": "^7.3.5",
     "vscode-languageserver-protocol": "^3.16.0",
     "which": "^2.0.2"
   },
   "dependencies": {
-    "typescript": "^4.3.5"
+    "typescript": "^4.7.2"
   }
 }
diff --git a/snippets/javascript.json b/snippets/javascript.json
new file mode 100644
index 0000000..ac5cd55
--- /dev/null
+++ b/snippets/javascript.json
@@ -0,0 +1,194 @@
+{
+	"define module": {
+		"prefix": "define",
+		"body": [
+			"define([",
+			"\t'require',",
+			"\t'${1:dependency}'",
+			"], function(require, ${2:factory}) {",
+			"\t'use strict';",
+			"\t$0",
+			"});"
+		],
+		"description": "define module"
+	},
+	"For Loop": {
+		"prefix": "for",
+		"body": [
+			"for (let ${1:index} = 0; ${1:index} < ${2:array}.length; ${1:index}++) {",
+			"\tconst ${3:element} = ${2:array}[${1:index}];",
+			"\t$TM_SELECTED_TEXT$0",
+			"}"
+		],
+		"description": "For Loop"
+	},
+	"For-Each Loop": {
+		"prefix": "foreach",
+		"body": [
+			"${1:array}.forEach(${2:element} => {",
+			"\t$TM_SELECTED_TEXT$0",
+			"});"
+		],
+		"description": "For-Each Loop"
+	},
+	"For-In Loop": {
+		"prefix": "forin",
+		"body": [
+			"for (const ${1:key} in ${2:object}) {",
+			"\tif (Object.hasOwnProperty.call(${2:object}, ${1:key})) {",
+			"\t\tconst ${3:element} = ${2:object}[${1:key}];",
+			"\t\t$TM_SELECTED_TEXT$0",
+			"\t}",
+			"}"
+		],
+		"description": "For-In Loop"
+	},
+	"For-Of Loop": {
+		"prefix": "forof",
+		"body": [
+			"for (const ${1:iterator} of ${2:object}) {",
+			"\t$TM_SELECTED_TEXT$0",
+			"}"
+		],
+		"description": "For-Of Loop"
+	},
+	"Function Statement": {
+		"prefix": "function",
+		"body": [
+			"function ${1:name}(${2:params}) {",
+			"\t$TM_SELECTED_TEXT$0",
+			"}"
+		],
+		"description": "Function Statement"
+	},
+	"If Statement": {
+		"prefix": "if",
+		"body": [
+			"if (${1:condition}) {",
+			"\t$TM_SELECTED_TEXT$0",
+			"}"
+		],
+		"description": "If Statement"
+	},
+	"If-Else Statement": {
+		"prefix": "ifelse",
+		"body": [
+			"if (${1:condition}) {",
+			"\t$TM_SELECTED_TEXT$0",
+			"} else {",
+			"\t",
+			"}"
+		],
+		"description": "If-Else Statement"
+	},
+	"New Statement": {
+		"prefix": "new",
+		"body": [
+			"const ${1:name} = new ${2:type}(${3:arguments});$0"
+		],
+		"description": "New Statement"
+	},
+	"Switch Statement": {
+		"prefix": "switch",
+		"body": [
+			"switch (${1:key}) {",
+			"\tcase ${2:value}:",
+			"\t\t$0",
+			"\t\tbreak;",
+			"",
+			"\tdefault:",
+			"\t\tbreak;",
+			"}"
+		],
+		"description": "Switch Statement"
+	},
+	"While Statement": {
+		"prefix": "while",
+		"body": [
+			"while (${1:condition}) {",
+			"\t$TM_SELECTED_TEXT$0",
+			"}"
+		],
+		"description": "While Statement"
+	},
+	"Do-While Statement": {
+		"prefix": "dowhile",
+		"body": [
+			"do {",
+			"\t$TM_SELECTED_TEXT$0",
+			"} while (${1:condition});"
+		],
+		"description": "Do-While Statement"
+	},
+	"Try-Catch Statement": {
+		"prefix": "trycatch",
+		"body": [
+			"try {",
+			"\t$TM_SELECTED_TEXT$0",
+			"} catch (${1:error}) {",
+			"\t",
+			"}"
+		],
+		"description": "Try-Catch Statement"
+	},
+	"Set Timeout Function": {
+		"prefix": "settimeout",
+		"body": [
+			"setTimeout(() => {",
+			"\t$TM_SELECTED_TEXT$0",
+			"}, ${1:timeout});"
+		],
+		"description": "Set Timeout Function"
+	},
+	"Set Interval Function": {
+		"prefix": "setinterval",
+		"body": [
+			"setInterval(() => {",
+			"\t$TM_SELECTED_TEXT$0",
+			"}, ${1:interval});"
+		],
+		"description": "Set Interval Function"
+	},
+	"Import external module.": {
+		"prefix": "import statement",
+		"body": [
+			"import { $0 } from \"${1:module}\";"
+		],
+		"description": "Import external module."
+	},
+	"Region Start": {
+		"prefix": "#region",
+		"body": [
+			"//#region $0"
+		],
+		"description": "Folding Region Start"
+	},
+	"Region End": {
+		"prefix": "#endregion",
+		"body": [
+			"//#endregion"
+		],
+		"description": "Folding Region End"
+	},
+	"Log to the console": {
+		"prefix": "log",
+		"body": [
+			"console.log($1);"
+		],
+		"description": "Log to the console"
+	},
+	"Log warning to console": {
+		"prefix": "warn",
+		"body": [
+			"console.warn($1);"
+		],
+		"description": "Log warning to the console"
+	},
+	"Log error to console": {
+		"prefix": "error",
+		"body": [
+			"console.error($1);"
+		],
+		"description": "Log error to the console"
+	}
+}
diff --git a/src/index.ts b/src/index.ts
index cdd0936..113d965 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,7 +1,5 @@
-import { commands, ExtensionContext, services, workspace } from 'coc.nvim'
+import { ExtensionContext, services } from 'coc.nvim'
 import TsserverService from './server'
-import { AutoFixCommand, Command, ConfigurePluginCommand, FileReferencesCommand, OpenTsServerLogCommand, ReloadProjectsCommand, TypeScriptGoToProjectConfigCommand } from './server/commands'
-import { OrganizeImportsCommand } from './server/organizeImports'
 import { PluginManager } from './utils/plugins'
 
 interface API {
@@ -9,39 +7,10 @@ interface API {
 }
 
 export async function activate(context: ExtensionContext): Promise<API> {
-  let { subscriptions, logger } = context
-  const config = workspace.getConfiguration().get<any>('tsserver', {})
-  if (!config.enable) return
+  let { subscriptions } = context
   const pluginManager = new PluginManager()
-  const service = new TsserverService(pluginManager)
-  function registCommand(cmd: Command): void {
-    let { id, execute } = cmd
-    subscriptions.push(commands.registerCommand(id as string, execute, cmd))
-  }
-  registCommand(new ConfigurePluginCommand(pluginManager))
-  registCommand(new AutoFixCommand(service))
-  registCommand(new ReloadProjectsCommand(service))
-  registCommand(new FileReferencesCommand(service))
-  registCommand(new OpenTsServerLogCommand(service))
-  registCommand(new TypeScriptGoToProjectConfigCommand(service))
-  registCommand(new OrganizeImportsCommand(service))
-  registCommand({
-    id: 'tsserver.restart',
-    execute: (): void => {
-      // tslint:disable-next-line:no-floating-promises
-      service.stop().then(() => {
-        setTimeout(() => {
-          service.restart()
-        }, 100)
-      })
-    }
-  })
-
-  service.start().then(() => {
-    subscriptions.push(services.regist(service))
-  }, e => {
-    logger.error(`Error on service start:`, e)
-  })
+  const service = new TsserverService(pluginManager, context.subscriptions)
+  subscriptions.push(services.regist(service))
 
   return {
     configurePlugin: (pluginId: string, configuration: {}): void => {
diff --git a/src/server/features/baseCodeLensProvider.ts b/src/server/features/baseCodeLensProvider.ts
index 74299d7..ff47b04 100644
--- a/src/server/features/baseCodeLensProvider.ts
+++ b/src/server/features/baseCodeLensProvider.ts
@@ -46,7 +46,8 @@ export abstract class TypeScriptBaseCodeLensProvider implements CodeLensProvider
 
   public constructor(
     protected client: ITypeScriptServiceClient,
-    private cachedResponse: CachedNavTreeResponse
+    private cachedResponse: CachedNavTreeResponse,
+    protected modeId: string
   ) {}
 
   public get onDidChangeCodeLenses(): Event<void> {
@@ -116,38 +117,31 @@ export abstract class TypeScriptBaseCodeLensProvider implements CodeLensProvider
       )
     }
   }
-  protected getSymbolRange(
-    document: TextDocument,
-    item: Proto.NavigationTree
-  ): Range | null {
-    if (!item) {
-      return null
-    }
+}
 
-    // TS 3.0+ provides a span for just the symbol
-    if ((item as any).nameSpan) {
-      return typeConverters.Range.fromTextSpan((item as any).nameSpan)
-    }
+export function getSymbolRange(
+  document: TextDocument,
+  item: Proto.NavigationTree
+): Range | null {
+  if (item.nameSpan) {
+    return typeConverters.Range.fromTextSpan(item.nameSpan)
+  }
 
-    // In older versions, we have to calculate this manually. See #23924
-    const span = item.spans && item.spans[0]
-    if (!span) {
-      return null
-    }
+  // In older versions, we have to calculate this manually. See #23924
+  const span = item.spans && item.spans[0]
+  if (!span) {
+    return null
+  }
 
-    const range = typeConverters.Range.fromTextSpan(span)
-    const text = document.getText(range)
+  const range = typeConverters.Range.fromTextSpan(span)
+  const text = document.getText(range)
 
-    const identifierMatch = new RegExp(
-      `^(.*?(\\b|\\W))${escapeRegExp(item.text || '')}(\\b|\\W)`,
-      'gm'
-    )
-    const match = identifierMatch.exec(text)
-    const prefixLength = match ? match.index + match[1].length : 0
-    const startOffset = document.offsetAt(range.start) + prefixLength
-    return {
-      start: document.positionAt(startOffset),
-      end: document.positionAt(startOffset + item.text.length)
-    }
+  const identifierMatch = new RegExp(`^(.*?(\\b|\\W))${escapeRegExp(item.text || '')}(\\b|\\W)`, 'gm')
+  const match = identifierMatch.exec(text)
+  const prefixLength = match ? match.index + match[1].length : 0
+  const startOffset = document.offsetAt(range.start) + prefixLength
+  return {
+    start: document.positionAt(startOffset),
+    end: document.positionAt(startOffset + item.text.length)
   }
 }
diff --git a/src/server/features/bufferSyncSupport.ts b/src/server/features/bufferSyncSupport.ts
index 627108d..a7ae050 100644
--- a/src/server/features/bufferSyncSupport.ts
+++ b/src/server/features/bufferSyncSupport.ts
@@ -345,9 +345,7 @@ export default class BufferSyncSupport {
   }
 
   public listen(): void {
-    if (this.listening) {
-      return
-    }
+    if (this.listening) return
     this.listening = true
     workspace.onDidOpenTextDocument(
       this.openTextDocument,
diff --git a/src/server/features/completionItemProvider.ts b/src/server/features/completionItemProvider.ts
index 7f2ad21..8280ee2 100644
--- a/src/server/features/completionItemProvider.ts
+++ b/src/server/features/completionItemProvider.ts
@@ -251,7 +251,7 @@ export default class TypeScriptCompletionItemProvider implements CompletionItemP
     }
     const detail = details[0]
     if (!item.detail && detail.displayParts.length) {
-      item.detail = Previewer.plain(detail.displayParts)
+      item.detail = Previewer.plainWithLinks(detail.displayParts)
     }
     item.documentation = this.getDocumentation(detail)
     const { command, additionalTextEdits } = this.getCodeActions(detail, filepath)
@@ -259,7 +259,7 @@ export default class TypeScriptCompletionItemProvider implements CompletionItemP
     item.additionalTextEdits = additionalTextEdits
     if (detail && item.insertTextFormat == InsertTextFormat.Snippet) {
       const shouldCompleteFunction = await this.isValidFunctionCompletionContext(filepath, position, token)
-      if (shouldCompleteFunction) {
+      if (shouldCompleteFunction && !item.insertText) {
         this.createSnippetOfFunctionCall(item, detail)
       }
     }
@@ -354,12 +354,12 @@ export default class TypeScriptCompletionItemProvider implements CompletionItemP
   private getDocumentation(detail: Proto.CompletionEntryDetails): MarkupContent | undefined {
     let documentation = ''
     if (detail.source) {
-      const importPath = `'${Previewer.plain(detail.source)}'`
+      const importPath = `'${Previewer.plainWithLinks(detail.source)}'`
       const autoImportLabel = `Auto import from ${importPath}`
       documentation += `${autoImportLabel}\n`
     }
     let parts = [
-      Previewer.plain(detail.documentation),
+      Previewer.plainWithLinks(detail.documentation),
       Previewer.tagsMarkdownPreview(detail.tags)
     ]
     parts = parts.filter(s => s && s.trim() != '')
diff --git a/src/server/features/documentSymbol.ts b/src/server/features/documentSymbol.ts
index 98a4586..3a78abc 100644
--- a/src/server/features/documentSymbol.ts
+++ b/src/server/features/documentSymbol.ts
@@ -38,6 +38,7 @@ const getSymbolKind = (kind: string): SymbolKind => {
       return SymbolKind.Variable
     case PConst.Kind.constructSignature:
     case PConst.Kind.constructorImplementation:
+      return SymbolKind.Constructor
     case PConst.Kind.function:
     case PConst.Kind.localFunction:
       return SymbolKind.Function
diff --git a/src/server/features/fileConfigurationManager.ts b/src/server/features/fileConfigurationManager.ts
index d465cff..f6674a6 100644
--- a/src/server/features/fileConfigurationManager.ts
+++ b/src/server/features/fileConfigurationManager.ts
@@ -40,6 +40,9 @@ export interface SuggestOptions {
   readonly importStatementSuggestions: boolean
   readonly includeCompletionsForImportStatements: boolean
   readonly includeCompletionsWithSnippetText: boolean
+  readonly includeCompletionsWithClassMemberSnippets: boolean
+  readonly generateReturnInDocTemplate: boolean
+  readonly includeCompletionsWithObjectLiteralMethodSnippets: boolean
 }
 
 export default class FileConfigurationManager {
@@ -85,7 +88,13 @@ export default class FileConfigurationManager {
   }
 
   public async ensureConfigurationForDocument(document: TextDocument, token: CancellationToken): Promise<void> {
-    let opts = await workspace.getFormatOptions(document.uri)
+    let opts: { insertSpaces: boolean, tabSize: number }
+    let cached = this.cachedMap.get(document.uri)
+    if (cached) {
+      opts = { insertSpaces: cached.formatOptions.convertTabsToSpaces, tabSize: cached.formatOptions.tabSize }
+    } else {
+      opts = await workspace.getFormatOptions(document.uri)
+    }
     return this.ensureConfigurationOptions(document, opts.insertSpaces, opts.tabSize, token)
   }
 
@@ -159,9 +168,12 @@ export default class FileConfigurationManager {
       paths: config.get<boolean>('paths', true),
       completeFunctionCalls: config.get<boolean>('completeFunctionCalls', true),
       autoImports: config.get<boolean>('autoImports', true),
+      includeCompletionsWithObjectLiteralMethodSnippets: config.get<boolean>('suggest.objectLiteralMethodSnippets.enabled', true),
+      generateReturnInDocTemplate: config.get<boolean>('jsdoc.generateReturns', true),
       importStatementSuggestions: config.get<boolean>('importStatements', true),
       includeCompletionsForImportStatements: config.get<boolean>('includeCompletionsForImportStatements', true),
       includeCompletionsWithSnippetText: config.get<boolean>('includeCompletionsWithSnippetText', true),
+      includeCompletionsWithClassMemberSnippets: config.get<boolean>('classMemberSnippets.enabled', true),
       includeAutomaticOptionalChainCompletions: config.get<boolean>('includeAutomaticOptionalChainCompletions', true)
     }
   }
@@ -170,17 +182,31 @@ export default class FileConfigurationManager {
     if (this.client.apiVersion.lt(API.v290)) {
       return {}
     }
-    const config = workspace.getConfiguration(`${language}.preferences`, uri)
+    const config = workspace.getConfiguration(language, uri)
+    const preferencesConfig = workspace.getConfiguration(`${language}.preferences`, uri)
+    const suggestConfig = this.getCompleteOptions(language)
     // getImportModuleSpecifierEndingPreference available on ts 2.9.0
-    const preferences: Proto.UserPreferences & { importModuleSpecifierEnding?: string } = {
-      quotePreference: this.getQuoteStyle(config),
-      importModuleSpecifierPreference: getImportModuleSpecifier(config) as any,
-      importModuleSpecifierEnding: getImportModuleSpecifierEndingPreference(config),
+    const preferences: Proto.UserPreferences = {
+      quotePreference: this.getQuoteStyle(preferencesConfig),
+      importModuleSpecifierPreference: getImportModuleSpecifier(preferencesConfig) as any,
+      importModuleSpecifierEnding: getImportModuleSpecifierEndingPreference(preferencesConfig),
+      jsxAttributeCompletionStyle: getJsxAttributeCompletionStyle(preferencesConfig),
       allowTextChangesInNewFiles: uri.startsWith('file:'),
       allowRenameOfImportPath: true,
-      providePrefixAndSuffixTextForRename: config.get<boolean>('renameShorthandProperties', true) === false ? false : config.get<boolean>('useAliasesForRenames', true),
-      includeCompletionsForImportStatements: this.getCompleteOptions(language).includeCompletionsForImportStatements,
-      includeCompletionsWithSnippetText: this.getCompleteOptions(language).includeCompletionsWithSnippetText,
+      // can't support it with coc.nvim by now.
+      provideRefactorNotApplicableReason: false,
+      providePrefixAndSuffixTextForRename: preferencesConfig.get<boolean>('renameShorthandProperties', true) === false ? false : preferencesConfig.get<boolean>('useAliasesForRenames', true),
+      generateReturnInDocTemplate: suggestConfig.generateReturnInDocTemplate,
+      includeCompletionsForImportStatements: suggestConfig.includeCompletionsForImportStatements,
+      includeCompletionsWithClassMemberSnippets: suggestConfig.includeCompletionsWithClassMemberSnippets,
+      includeCompletionsWithSnippetText: suggestConfig.includeCompletionsWithSnippetText,
+      // @ts-expect-error until 4.7
+      includeCompletionsWithObjectLiteralMethodSnippets: suggestConfig.includeCompletionsWithObjectLiteralMethodSnippets,
+      includeAutomaticOptionalChainCompletions: suggestConfig.includeAutomaticOptionalChainCompletions,
+      useLabelDetailsInCompletionEntries: true,
+      allowIncompleteCompletions: true,
+      displayPartsForJSDoc: true,
+      ...getInlayHintsPreferences(config),
     }
     return preferences
   }
@@ -220,3 +246,41 @@ function getImportModuleSpecifierEndingPreference(config: WorkspaceConfiguration
     default: return 'auto'
   }
 }
+
+function getJsxAttributeCompletionStyle(config: WorkspaceConfiguration) {
+  switch (config.get<string>('jsxAttributeCompletionStyle')) {
+    case 'braces': return 'braces'
+    case 'none': return 'none'
+    default: return 'auto'
+  }
+}
+
+export class InlayHintSettingNames {
+  static readonly parameterNamesSuppressWhenArgumentMatchesName = 'inlayHints.parameterNames.suppressWhenArgumentMatchesName'
+  static readonly parameterNamesEnabled = 'inlayHints.parameterTypes.enabled'
+  static readonly variableTypesEnabled = 'inlayHints.variableTypes.enabled'
+  static readonly propertyDeclarationTypesEnabled = 'inlayHints.propertyDeclarationTypes.enabled'
+  static readonly functionLikeReturnTypesEnabled = 'inlayHints.functionLikeReturnTypes.enabled'
+  static readonly enumMemberValuesEnabled = 'inlayHints.enumMemberValues.enabled'
+}
+
+export function getInlayHintsPreferences(config: WorkspaceConfiguration) {
+  return {
+    includeInlayParameterNameHints: getInlayParameterNameHintsPreference(config),
+    includeInlayParameterNameHintsWhenArgumentMatchesName: !config.get<boolean>(InlayHintSettingNames.parameterNamesSuppressWhenArgumentMatchesName, true),
+    includeInlayFunctionParameterTypeHints: config.get<boolean>(InlayHintSettingNames.parameterNamesEnabled, false),
+    includeInlayVariableTypeHints: config.get<boolean>(InlayHintSettingNames.variableTypesEnabled, false),
+    includeInlayPropertyDeclarationTypeHints: config.get<boolean>(InlayHintSettingNames.propertyDeclarationTypesEnabled, false),
+    includeInlayFunctionLikeReturnTypeHints: config.get<boolean>(InlayHintSettingNames.functionLikeReturnTypesEnabled, false),
+    includeInlayEnumMemberValueHints: config.get<boolean>(InlayHintSettingNames.enumMemberValuesEnabled, false),
+  } as const
+}
+
+function getInlayParameterNameHintsPreference(config: WorkspaceConfiguration) {
+  switch (config.get<string>('inlayHints.parameterNames.enabled')) {
+    case 'none': return 'none'
+    case 'literals': return 'literals'
+    case 'all': return 'all'
+    default: return undefined
+  }
+}
diff --git a/src/server/features/folding.ts b/src/server/features/folding.ts
index 0917c41..1f257bf 100644
--- a/src/server/features/folding.ts
+++ b/src/server/features/folding.ts
@@ -45,16 +45,22 @@ export default class TypeScriptFoldingProvider implements FoldingRangeProvider {
   ): FoldingRange | undefined {
     const range = typeConverters.Range.fromTextSpan(span.textSpan)
     const kind = TypeScriptFoldingProvider.getFoldingRangeKind(span)
+    let { start, end } = range
 
     // Workaround for #49904
     if (span.kind === 'comment') {
       let doc = workspace.getDocument(document.uri)
-      const line = doc.getline(range.start.line)
+      const line = doc.getline(start.line)
       if (line.match(/\/\/\s*#endregion/gi)) {
         return undefined
       }
+    } else if (span.kind === 'code') {
+      let doc = workspace.getDocument(document.uri)
+      if (end.line > start.line && /^\s*}/.test(doc.getline(end.line))) {
+        end.line -= 1
+        end.character = doc.getline(end.line).length
+      }
     }
-    let { start, end } = range
     return FoldingRange.create(start.line, end.line, start.character, end.character, kind)
   }
 
diff --git a/src/server/features/hover.ts b/src/server/features/hover.ts
index a9d3e26..c669f44 100644
--- a/src/server/features/hover.ts
+++ b/src/server/features/hover.ts
@@ -7,7 +7,7 @@ import { HoverProvider } from 'coc.nvim'
 import { CancellationToken, Hover, MarkedString, Position } from 'vscode-languageserver-protocol'
 import * as Proto from '../protocol'
 import { ITypeScriptServiceClient } from '../typescriptService'
-import { tagsMarkdownPreview } from '../utils/previewer'
+import { markdownDocumentation } from '../utils/previewer'
 import * as typeConverters from '../utils/typeConverters'
 
 export default class TypeScriptHoverProvider implements HoverProvider {
@@ -42,14 +42,16 @@ export default class TypeScriptHoverProvider implements HoverProvider {
   }
 
   private static getContents(data: Proto.QuickInfoResponseBody): MarkedString[] { // tslint:disable-line
-    const parts = []
-
+    const parts: MarkedString[] = []
     if (data.displayString) {
+      // const displayParts: string[] = []
       parts.push({ language: 'typescript', value: data.displayString })
     }
-
-    const tags = tagsMarkdownPreview(data.tags)
-    parts.push(data.documentation + (tags ? '\n\n' + tags : ''))
+    const markup = markdownDocumentation(data.documentation, data.tags)
+    parts.push({
+      language: 'markdown',
+      value: markup.value
+    })
     return parts
   }
 }
diff --git a/src/server/features/implementationsCodeLens.ts b/src/server/features/implementationsCodeLens.ts
index 3e870c0..bb82ae9 100644
--- a/src/server/features/implementationsCodeLens.ts
+++ b/src/server/features/implementationsCodeLens.ts
@@ -7,7 +7,7 @@ import { TextDocument } from 'coc.nvim'
 import * as Proto from '../protocol'
 import * as PConst from '../protocol.const'
 import * as typeConverters from '../utils/typeConverters'
-import { TypeScriptBaseCodeLensProvider } from './baseCodeLensProvider'
+import { TypeScriptBaseCodeLensProvider, getSymbolRange } from './baseCodeLensProvider'
 
 export default class TypeScriptImplementationsCodeLensProvider extends TypeScriptBaseCodeLensProvider {
   public async resolveCodeLens(
@@ -21,43 +21,39 @@ export default class TypeScriptImplementationsCodeLensProvider extends TypeScrip
       filepath,
       codeLens.range.start
     )
-    try {
-      const response = await this.client.execute('implementation', args, token, { lowPriority: true })
-      if (response && response.type == 'response' && response.body) {
-        const locations = response.body
-          .map(reference => {
-            return {
-              uri: this.client.toResource(reference.file),
-              range: {
-                start: typeConverters.Position.fromLocation(reference.start),
-                end: {
-                  line: reference.start.line,
-                  character: 0
-                }
-              }
-            }
-          })
-          // Exclude original from implementations
-          .filter(
-            location => !(
-              location.uri.toString() === uri &&
-              location.range.start.line === codeLens.range.start.line &&
-              location.range.start.character ===
-              codeLens.range.start.character
-            )
-          )
-
-        codeLens.command = this.getCommand(locations, codeLens)
-        return codeLens
+    const response = await this.client.execute('implementation', args, token, { lowPriority: true })
+    if (response.type !== 'response' || !response.body) {
+      codeLens.command = {
+        title: response.type === 'cancelled'
+          ? 'cancelled'
+          : 'could not determine implementation',
+        command: ''
       }
-    } catch {
-      // noop
-    }
-
-    codeLens.command = {
-      title: '0 implementations',
-      command: ''
+      return codeLens
     }
+    const locations = response.body
+      .map(reference => {
+        return {
+          uri: this.client.toResource(reference.file),
+          range: {
+            start: typeConverters.Position.fromLocation(reference.start),
+            end: {
+              line: reference.start.line,
+              character: 0
+            }
+          }
+        }
+      })
+      // Exclude original from implementations
+      .filter(
+        location => !(
+          location.uri.toString() === uri &&
+          location.range.start.line === codeLens.range.start.line &&
+          location.range.start.character ===
+          codeLens.range.start.character
+        )
+      )
+    codeLens.command = this.getCommand(locations, codeLens)
     return codeLens
   }
 
@@ -84,7 +80,7 @@ export default class TypeScriptImplementationsCodeLensProvider extends TypeScrip
   ): Range | null {
     switch (item.kind) {
       case PConst.Kind.interface:
-        return super.getSymbolRange(document, item)
+        return getSymbolRange(document, item)
 
       case PConst.Kind.class:
       case PConst.Kind.method:
@@ -92,7 +88,7 @@ export default class TypeScriptImplementationsCodeLensProvider extends TypeScrip
       case PConst.Kind.memberGetAccessor:
       case PConst.Kind.memberSetAccessor:
         if (item.kindModifiers.match(/\babstract\b/g)) {
-          return super.getSymbolRange(document, item)
+          return getSymbolRange(document, item)
         }
         break
     }
diff --git a/src/server/features/inlayHints.ts b/src/server/features/inlayHints.ts
new file mode 100644
index 0000000..4ab268e
--- /dev/null
+++ b/src/server/features/inlayHints.ts
@@ -0,0 +1,92 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+*--------------------------------------------------------------------------------------------*/
+
+import { CancellationToken, Disposable, disposeAll, Emitter, Event, InlayHint, InlayHintKind, InlayHintsProvider, Range, TextDocument, workspace } from 'coc.nvim'
+import type * as Proto from '../protocol'
+import { ITypeScriptServiceClient } from '../typescriptService'
+import API from '../utils/api'
+import { LanguageDescription } from '../utils/languageDescription'
+import * as typeConverters from '../utils/typeConverters'
+import FileConfigurationManager, { getInlayHintsPreferences } from './fileConfigurationManager'
+
+export default class TypeScriptInlayHintsProvider implements InlayHintsProvider {
+  public static readonly minVersion = API.v440
+  private disposables: Disposable[] = []
+  private readonly _onDidChangeInlayHints = new Emitter<void>()
+  public readonly onDidChangeInlayHints: Event<void> = this._onDidChangeInlayHints.event
+
+  constructor(
+    private readonly language: LanguageDescription,
+    private readonly client: ITypeScriptServiceClient,
+    private readonly fileConfigurationManager: FileConfigurationManager,
+  ) {
+    let section = `${language.id}.inlayHints`
+    workspace.onDidChangeConfiguration(async e => {
+      if (e.affectsConfiguration(section)) {
+        this._onDidChangeInlayHints.fire()
+      }
+    }, null, this.disposables)
+    // When a JS/TS file changes, change inlay hints for all visible editors
+    // since changes in one file can effect the hints the others.
+    workspace.onDidChangeTextDocument(e => {
+      let doc = workspace.getDocument(e.textDocument.uri)
+      if (language.languageIds.includes(doc.languageId)) {
+        this._onDidChangeInlayHints.fire()
+      }
+    }, null, this.disposables)
+  }
+
+  public dispose(): void {
+    this._onDidChangeInlayHints.dispose()
+    disposeAll(this.disposables)
+  }
+
+  async provideInlayHints(document: TextDocument, range: Range, token: CancellationToken): Promise<InlayHint[]> {
+    const filepath = this.client.toOpenedFilePath(document.uri)
+    if (!filepath) return []
+
+    if (!areInlayHintsEnabledForFile(this.language, document)) {
+      return []
+    }
+    const start = document.offsetAt(range.start)
+    const length = document.offsetAt(range.end) - start
+    await this.fileConfigurationManager.ensureConfigurationForDocument(document, token)
+    const response = await this.client.execute('provideInlayHints', { file: filepath, start, length }, token)
+    if (response.type !== 'response' || !response.success || !response.body) {
+      return []
+    }
+
+    return response.body.map(hint => {
+      return {
+        label: hint.text,
+        position: typeConverters.Position.fromLocation(hint.position),
+        kind: fromProtocolInlayHintKind(hint.kind),
+        paddingLeft: hint.whitespaceBefore,
+        paddingRight: hint.whitespaceAfter,
+      }
+    })
+  }
+}
+
+function fromProtocolInlayHintKind(kind: Proto.InlayHintKind): InlayHintKind {
+  switch (kind) {
+    case 'Parameter': return 2
+    case 'Type': return 1
+    case 'Enum': return undefined
+    default: return undefined
+  }
+}
+
+function areInlayHintsEnabledForFile(language: LanguageDescription, document: TextDocument) {
+  const config = workspace.getConfiguration(language.id, document.uri)
+  const preferences = getInlayHintsPreferences(config)
+  return preferences.includeInlayParameterNameHints === 'literals' ||
+    preferences.includeInlayParameterNameHints === 'all' ||
+    preferences.includeInlayEnumMemberValueHints ||
+    preferences.includeInlayFunctionLikeReturnTypeHints ||
+    preferences.includeInlayFunctionParameterTypeHints ||
+    preferences.includeInlayPropertyDeclarationTypeHints ||
+    preferences.includeInlayVariableTypeHints
+}
diff --git a/src/server/features/jsDocCompletion.ts b/src/server/features/jsDocCompletion.ts
new file mode 100644
index 0000000..22872aa
--- /dev/null
+++ b/src/server/features/jsDocCompletion.ts
@@ -0,0 +1,121 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { CancellationToken, CompletionItem, CompletionItemKind, CompletionItemProvider, InsertTextFormat, Position, Range, SnippetString, TextDocument, workspace } from 'coc.nvim'
+import { ITypeScriptServiceClient } from '../typescriptService'
+import { LanguageDescription } from '../utils/languageDescription'
+import * as typeConverters from '../utils/typeConverters'
+import FileConfigurationManager from './fileConfigurationManager'
+
+const defaultJsDoc = new SnippetString(`/**\n * $0\n */`)
+
+function createCompleteItem(document: TextDocument, position: Position): CompletionItem {
+  const line = document.lineAt(position.line).text
+  const prefix = line.slice(0, position.character).match(/\/\**\s*$/)
+  const suffix = line.slice(position.character).match(/^\s*\**\//)
+  const start = Position.create(position.line, prefix ? position.character - prefix[0].length : position.character)
+  const range = Range.create(start, Position.create(start.line, start.character + (suffix ? suffix[0].length : 0)))
+  let insert = `/** */`
+  return {
+    label: insert,
+    kind: CompletionItemKind.Text,
+    insertTextFormat: InsertTextFormat.Snippet,
+    detail: 'JSDoc comment',
+    sortText: `\0`,
+    textEdit: {
+      newText: insert,
+      range
+    }
+  }
+}
+
+export class JsDocCompletionProvider implements CompletionItemProvider {
+  constructor(
+    private readonly client: ITypeScriptServiceClient,
+    private readonly language: LanguageDescription,
+    private readonly fileConfigurationManager: FileConfigurationManager,
+  ) {}
+
+  public async provideCompletionItems(
+    document: TextDocument,
+    position: Position,
+    token: CancellationToken
+  ): Promise<CompletionItem[] | undefined> {
+    if (!workspace.getConfiguration(this.language.id, document.uri).get('suggest.completeJSDocs')) {
+      return undefined
+    }
+
+    const file = this.client.toOpenedFilePath(document.uri)
+    if (!file) {
+      return undefined
+    }
+
+    if (!this.isPotentiallyValidDocCompletionPosition(document, position)) {
+      return undefined
+    }
+
+    const response = await this.client.interruptGetErr(async () => {
+      await this.fileConfigurationManager.ensureConfigurationForDocument(document, token)
+      const args = typeConverters.Position.toFileLocationRequestArgs(file, position)
+      return this.client.execute('docCommentTemplate', args, token)
+    })
+    if (response.type !== 'response' || !response.body) {
+      return undefined
+    }
+
+    const item = createCompleteItem(document, position)
+
+    // Workaround for #43619
+    // docCommentTemplate previously returned undefined for empty jsdoc templates.
+    // TS 2.7 now returns a single line doc comment, which breaks indentation.
+    if (response.body.newText === '/** */') {
+      item.textEdit.newText = defaultJsDoc.value
+    } else {
+      item.textEdit.newText = templateToSnippet(response.body.newText).value
+    }
+
+    return [item]
+  }
+
+  private isPotentiallyValidDocCompletionPosition(
+    document: TextDocument,
+    position: Position
+  ): boolean {
+    // Only show the JSdoc completion when the everything before the cursor is whitespace
+    // or could be the opening of a comment
+    const line = document.lineAt(position.line).text
+    const prefix = line.slice(0, position.character)
+    if (!/^\s*$|\/\*\s*$|^\s*\/\*+\s*$/.test(prefix)) {
+      return false
+    }
+
+    // And everything after is possibly a closing comment or more whitespace
+    const suffix = line.slice(position.character)
+    return /^\s*(\*+\/)?\s*$/.test(suffix)
+  }
+}
+
+export function templateToSnippet(template: string): SnippetString {
+  // TODO: use append placeholder
+  let snippetIndex = 1
+  template = template.replace(/\*\s$/gm, '*')
+  template = template.replace(/\$/g, '\\$')
+  template = template.replace(/^[ \t]*(?=(\/|[ ]\*))/gm, '')
+  template = template.replace(/^(\/\*\*\s*\*[ ]*)$/m, (x) => x + `\$0`)
+  template = template.replace(/\* @param([ ]\{\S+\})?\s+(\S+)[ \t]*$/gm, (_param, type, post) => {
+    let out = '* @param '
+    if (type === ' {any}' || type === ' {*}') {
+      out += `{\$\{${snippetIndex++}:*\}} `
+    } else if (type) {
+      out += type + ' '
+    }
+    out += post + ` \${${snippetIndex++}}`
+    return out
+  })
+
+  template = template.replace(/\* @returns[ \t]*$/gm, `* @returns \${${snippetIndex++}}`)
+
+  return new SnippetString(template)
+}
diff --git a/src/server/features/refactor.ts b/src/server/features/refactor.ts
index 9a912f1..6c9fc4f 100644
--- a/src/server/features/refactor.ts
+++ b/src/server/features/refactor.ts
@@ -1,8 +1,8 @@
-import { CodeActionProvider, CodeActionProviderMetadata, commands, TextDocument, window, workspace } from 'coc.nvim'
 /*---------------------------------------------------------------------------------------------
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
+import { CodeActionProvider, Uri, CodeActionProviderMetadata, commands, TextDocument, window, workspace } from 'coc.nvim'
 import { CancellationToken, CodeAction, CodeActionContext, CodeActionKind, Range, WorkspaceEdit } from 'vscode-languageserver-protocol'
 import { Command, registCommand } from '../commands'
 import Proto from '../protocol'
@@ -55,13 +55,22 @@ class ApplyRefactoringCommand implements Command {
   }
 
   private async toWorkspaceEdit(body: Proto.RefactorEditInfo): Promise<WorkspaceEdit> {
-    for (const edit of body.edits) {
-      await workspace.createFile(edit.fileName, { ignoreIfExists: true })
-    }
     let workspaceEdit = typeConverters.WorkspaceEdit.fromFileCodeEdits(
       this.client,
       body.edits
     )
+    let documentChanges = workspaceEdit.documentChanges = workspaceEdit.documentChanges || []
+    for (const edit of body.edits) {
+      let resource = this.client.toResource(edit.fileName)
+      if (Uri.parse(resource).scheme === 'file') {
+        // should create file first.
+        documentChanges.unshift({
+          kind: 'create',
+          uri: resource,
+          options: { ignoreIfExists: true }
+        })
+      }
+    }
     return workspaceEdit
   }
 }
diff --git a/src/server/features/referencesCodeLens.ts b/src/server/features/referencesCodeLens.ts
index 5c31854..4d33193 100644
--- a/src/server/features/referencesCodeLens.ts
+++ b/src/server/features/referencesCodeLens.ts
@@ -2,15 +2,16 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-import { CancellationToken, CodeLens, Range } from 'vscode-languageserver-protocol'
-import { TextDocument } from 'coc.nvim'
+import { CancellationToken, Position, Range } from 'vscode-languageserver-protocol'
+import { TextDocument, workspace, CodeLens } from 'coc.nvim'
+import { ExecutionTarget } from '../typescriptService'
 import * as Proto from '../protocol'
 import * as PConst from '../protocol.const'
 import * as typeConverters from '../utils/typeConverters'
-import { TypeScriptBaseCodeLensProvider } from './baseCodeLensProvider'
+import { TypeScriptBaseCodeLensProvider, getSymbolRange } from './baseCodeLensProvider'
 
 export default class TypeScriptReferencesCodeLensProvider extends TypeScriptBaseCodeLensProvider {
-  public resolveCodeLens(
+  public async resolveCodeLens(
     codeLens: CodeLens,
     token: CancellationToken
   ): Promise<CodeLens> {
@@ -20,47 +21,35 @@ export default class TypeScriptReferencesCodeLensProvider extends TypeScriptBase
       filepath,
       codeLens.range.start
     )
-    return this.client
-      .execute('references', args, token, {
-        lowPriority: true
-      })
-      .then(response => {
-        if (!response || response.type != 'response' || !response.body) {
-          throw codeLens
-        }
+    let response = await this.client.execute('references', args, token, {
+      lowPriority: true,
+      executionTarget: ExecutionTarget.Semantic
+    })
+    if (!response || response.type != 'response' || !response.body) {
+      codeLens.command = {
+        title: response.type === 'cancelled'
+          ? 'cancelled'
+          : 'could not determine references',
+        command: ''
+      }
+      return codeLens
+    }
 
-        const locations = response.body.refs
-          .map(reference =>
-            typeConverters.Location.fromTextSpan(
-              this.client.toResource(reference.file),
-              reference
-            )
-          )
-          .filter(
-            location =>
-              // Exclude original definition from references
-              !(
-                location.uri.toString() === uri &&
-                location.range.start.line === codeLens.range.start.line &&
-                location.range.start.character ===
-                codeLens.range.start.character
-              )
-          )
+    const locations = response.body.refs
+      .filter(reference => !reference.isDefinition)
+      .map(reference =>
+        typeConverters.Location.fromTextSpan(
+          this.client.toResource(reference.file),
+          reference
+        )
+      )
 
-        codeLens.command = {
-          title: locations.length === 1 ? '1 reference' : `${locations.length} references`,
-          command: locations.length ? 'editor.action.showReferences' : '',
-          arguments: [uri, codeLens.range.start, locations]
-        }
-        return codeLens
-      })
-      .catch(() => {
-        codeLens.command = {
-          title: '0 references',
-          command: ''
-        }
-        return codeLens
-      })
+    codeLens.command = {
+      title: locations.length === 1 ? '1 reference' : `${locations.length} references`,
+      command: locations.length ? 'editor.action.showReferences' : '',
+      arguments: [uri, codeLens.range.start, locations]
+    }
+    return codeLens
   }
 
   protected extractSymbol(
@@ -69,37 +58,68 @@ export default class TypeScriptReferencesCodeLensProvider extends TypeScriptBase
     parent: Proto.NavigationTree | null
   ): Range | null {
     if (parent && parent.kind === PConst.Kind.enum) {
-      return super.getSymbolRange(document, item)
+      return getSymbolRange(document, item)
     }
 
     switch (item.kind) {
+      case PConst.Kind.function: {
+        const showOnAllFunctions = workspace.getConfiguration(this.modeId).get<boolean>('referencesCodeLens.showOnAllFunctions')
+        if (showOnAllFunctions) {
+          return getSymbolRange(document, item)
+        }
+      }
+      // fallthrough
+
       case PConst.Kind.const:
       case PConst.Kind.let:
       case PConst.Kind.variable:
-      case PConst.Kind.function:
         // Only show references for exported variables
-        if (!item.kindModifiers.match(/\bexport\b/)) {
-          break
+        if (/\bexport\b/.test(item.kindModifiers)) {
+          return getSymbolRange(document, item)
         }
-      // fallthrough
+        break
 
       case PConst.Kind.class:
         if (item.text === '<class>') {
           break
         }
-      // fallthrough
+        return getSymbolRange(document, item)
 
-      case PConst.Kind.method:
-      case PConst.Kind.memberVariable:
-      case PConst.Kind.memberGetAccessor:
-      case PConst.Kind.memberSetAccessor:
-      case PConst.Kind.constructorImplementation:
       case PConst.Kind.interface:
       case PConst.Kind.type:
       case PConst.Kind.enum:
-        return super.getSymbolRange(document, item)
+        return getSymbolRange(document, item)
+
+      case PConst.Kind.method:
+      case PConst.Kind.memberGetAccessor:
+      case PConst.Kind.memberSetAccessor:
+      case PConst.Kind.constructorImplementation:
+      case PConst.Kind.memberVariable:
+        // Don't show if child and parent have same start
+        // For https://github.com/microsoft/vscode/issues/90396
+        if (parent &&
+          comparePosition(typeConverters.Position.fromLocation(parent.spans[0].start), typeConverters.Position.fromLocation(item.spans[0].start)) == 0
+        ) {
+          return null
+        }
+
+        // Only show if parent is a class type object (not a literal)
+        switch (parent?.kind) {
+          case PConst.Kind.class:
+          case PConst.Kind.interface:
+          case PConst.Kind.type:
+            return getSymbolRange(document, item)
+        }
+        break
     }
 
     return null
   }
 }
+
+export function comparePosition(position: Position, other: Position): number {
+  if (position.line > other.line) return 1
+  if (other.line == position.line && position.character > other.character) return 1
+  if (other.line == position.line && position.character == other.character) return 0
+  return -1
+}
diff --git a/src/server/features/rename.ts b/src/server/features/rename.ts
index 8df0966..cdb04dd 100644
--- a/src/server/features/rename.ts
+++ b/src/server/features/rename.ts
@@ -16,7 +16,7 @@ export default class TypeScriptRenameProvider implements RenameProvider {
   public constructor(
     private readonly client: ITypeScriptServiceClient,
     private readonly fileConfigurationManager: FileConfigurationManager
-  ) { }
+  ) {}
 
   public async prepareRename(
     document: TextDocument,
@@ -60,8 +60,8 @@ export default class TypeScriptRenameProvider implements RenameProvider {
     }
 
     if (this.client.apiVersion.gte(API.v310)) {
-      if ((renameInfo as any).fileToRename) {
-        const edits = await this.renameFile((renameInfo as any).fileToRename, newName, token)
+      if (renameInfo.fileToRename) {
+        const edits = await this.renameFile(renameInfo.fileToRename, newName, token)
         if (edits) {
           return edits
         } else {
diff --git a/src/server/features/semanticTokens.ts b/src/server/features/semanticTokens.ts
new file mode 100644
index 0000000..2ad3e49
--- /dev/null
+++ b/src/server/features/semanticTokens.ts
@@ -0,0 +1,294 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { CancellationToken, DocumentRangeSemanticTokensProvider, DocumentSemanticTokensProvider, Range, SemanticTokens, SemanticTokensBuilder, TextDocument, workspace } from 'coc.nvim'
+import { SemanticTokensLegend } from 'vscode-languageserver-protocol'
+import * as Proto from '../protocol'
+import { ExecConfig, ITypeScriptServiceClient, ServerResponse } from '../typescriptService'
+import API from '../utils/api'
+
+// as we don't do deltas, for performance reasons, don't compute semantic tokens for documents above that limit
+const CONTENT_LENGTH_LIMIT = 100000
+
+/**
+ * Prototype of a DocumentSemanticTokensProvider, relying on the experimental `encodedSemanticClassifications-full` request from the TypeScript server.
+ * As the results retured by the TypeScript server are limited, we also add a Typescript plugin (typescript-vscode-sh-plugin) to enrich the returned token.
+ * See https://github.com/aeschli/typescript-vscode-sh-plugin.
+ */
+export default class TypeScriptDocumentSemanticTokensProvider implements DocumentSemanticTokensProvider, DocumentRangeSemanticTokensProvider {
+  public static readonly minVersion = API.v370
+
+  constructor(private readonly client: ITypeScriptServiceClient) {}
+
+  getLegend(): SemanticTokensLegend {
+    return {
+      tokenTypes,
+      tokenModifiers
+    }
+  }
+
+  private logIgnored(uri: string): void {
+    this.client.logger.warn(`${uri} content length exceed limit 100000`)
+  }
+
+  async provideDocumentSemanticTokens(document: TextDocument, token: CancellationToken): Promise<SemanticTokens | null> {
+    const file = this.client.toOpenedFilePath(document.uri)
+    if (!file || document.getText().length > CONTENT_LENGTH_LIMIT) {
+      this.logIgnored(document.uri)
+      return null
+    }
+    return this._provideSemanticTokens(document, { file, start: 0, length: document.getText().length }, token)
+  }
+
+  async provideDocumentRangeSemanticTokens(document: TextDocument, range: Range, token: CancellationToken): Promise<SemanticTokens | null> {
+    const file = this.client.toOpenedFilePath(document.uri)
+    if (!file || (document.offsetAt(range.end) - document.offsetAt(range.start) > CONTENT_LENGTH_LIMIT)) {
+      this.logIgnored(document.uri)
+      return null
+    }
+
+    const start = document.offsetAt(range.start)
+    const length = document.offsetAt(range.end) - start
+    return this._provideSemanticTokens(document, { file, start, length }, token)
+  }
+
+  async _provideSemanticTokens(document: TextDocument, requestArg: Proto.EncodedSemanticClassificationsRequestArgs, token: CancellationToken): Promise<SemanticTokens | null> {
+    const file = this.client.toOpenedFilePath(document.uri)
+    if (!file) {
+      return null
+    }
+
+    const versionBeforeRequest = document.version
+
+    requestArg.format = '2020'
+
+    const response = await (this.client as ExperimentalProtocol.IExtendedTypeScriptServiceClient).execute('encodedSemanticClassifications-full', requestArg, token, {
+      cancelOnResourceChange: document.uri
+    })
+    if (response.type !== 'response' || !response.body) {
+      return null
+    }
+
+    const versionAfterRequest = document.version
+    if (versionBeforeRequest !== versionAfterRequest) {
+      // cannot convert result's offsets to (linecol) values correctly
+      // a new request will come in soon...
+      //
+      // here we cannot return null, because returning null would remove all semantic tokens.
+      // we must throw to indicate that the semantic tokens should not be removed.
+      // using the string busy here because it is not logged to error telemetry if the error text contains busy.
+
+      // as the new request will come in right after our response, we first wait for the document activity to stop
+      await waitForDocumentChangesToEnd(document)
+
+      throw new Error('Canceled')
+    }
+
+    const doc = workspace.getDocument(document.uri)
+    const tokenSpan = response.body.spans
+
+    const builder = new SemanticTokensBuilder()
+    let i = 0
+    while (i < tokenSpan.length) {
+      const offset = tokenSpan[i++]
+      const length = tokenSpan[i++]
+      const tsClassification = tokenSpan[i++]
+
+      let tokenModifiers = 0
+      let tokenType = getTokenTypeFromClassification(tsClassification)
+      if (tokenType !== undefined) {
+        // it's a classification as returned by the typescript-vscode-sh-plugin
+        tokenModifiers = getTokenModifierFromClassification(tsClassification)
+      } else {
+        // typescript-vscode-sh-plugin is not present
+        tokenType = tokenTypeMap[tsClassification]
+        if (tokenType === undefined) {
+          continue
+        }
+      }
+
+      // we can use the document's range conversion methods because the result is at the same version as the document
+      const startPos = document.positionAt(offset)
+      const endPos = document.positionAt(offset + length)
+      for (let line = startPos.line; line <= endPos.line; line++) {
+        const startCharacter = (line === startPos.line ? startPos.character : 0)
+        const endCharacter = (line === endPos.line ? endPos.character : doc.getline(line).length)
+        builder.push(line, startCharacter, endCharacter - startCharacter, tokenType, tokenModifiers)
+      }
+    }
+    return builder.build()
+  }
+}
+
+function waitForDocumentChangesToEnd(document: TextDocument) {
+  let version = document.version
+  return new Promise<void>((s) => {
+    const iv = setInterval(_ => {
+      if (document.version === version) {
+        clearInterval(iv)
+        s()
+      }
+      version = document.version
+    }, 400)
+  })
+}
+
+function getTokenTypeFromClassification(tsClassification: number): number | undefined {
+  if (tsClassification > TokenEncodingConsts.modifierMask) {
+    return (tsClassification >> TokenEncodingConsts.typeOffset) - 1
+  }
+  return undefined
+}
+
+function getTokenModifierFromClassification(tsClassification: number) {
+  return tsClassification & TokenEncodingConsts.modifierMask
+}
+
+// typescript encodes type and modifiers in the classification:
+// TSClassification = (TokenType + 1) << 8 + TokenModifier
+
+const enum TokenType {
+  class = 0,
+  enum = 1,
+  interface = 2,
+  namespace = 3,
+  typeParameter = 4,
+  type = 5,
+  parameter = 6,
+  variable = 7,
+  enumMember = 8,
+  property = 9,
+  function = 10,
+  method = 11,
+  _ = 12
+}
+const enum TokenModifier {
+  declaration = 0,
+  static = 1,
+  async = 2,
+  readonly = 3,
+  defaultLibrary = 4,
+  local = 5,
+  _ = 6
+}
+const enum TokenEncodingConsts {
+  typeOffset = 8,
+  modifierMask = 255
+}
+
+const tokenTypes: string[] = []
+tokenTypes[TokenType.class] = 'class'
+tokenTypes[TokenType.enum] = 'enum'
+tokenTypes[TokenType.interface] = 'interface'
+tokenTypes[TokenType.namespace] = 'namespace'
+tokenTypes[TokenType.typeParameter] = 'typeParameter'
+tokenTypes[TokenType.type] = 'type'
+tokenTypes[TokenType.parameter] = 'parameter'
+tokenTypes[TokenType.variable] = 'variable'
+tokenTypes[TokenType.enumMember] = 'enumMember'
+tokenTypes[TokenType.property] = 'property'
+tokenTypes[TokenType.function] = 'function'
+tokenTypes[TokenType.method] = 'method'
+
+const tokenModifiers: string[] = []
+tokenModifiers[TokenModifier.async] = 'async'
+tokenModifiers[TokenModifier.declaration] = 'declaration'
+tokenModifiers[TokenModifier.readonly] = 'readonly'
+tokenModifiers[TokenModifier.static] = 'static'
+tokenModifiers[TokenModifier.local] = 'local'
+tokenModifiers[TokenModifier.defaultLibrary] = 'defaultLibrary'
+
+export namespace ExperimentalProtocol {
+
+  export interface IExtendedTypeScriptServiceClient {
+    execute<K extends keyof ExperimentalProtocol.ExtendedTsServerRequests>(
+      command: K,
+      args: ExperimentalProtocol.ExtendedTsServerRequests[K][0],
+      token: CancellationToken,
+      config?: ExecConfig
+    ): Promise<ServerResponse.Response<ExperimentalProtocol.ExtendedTsServerRequests[K][1]>>
+  }
+
+  /**
+   * A request to get encoded semantic classifications for a span in the file
+   */
+  export interface EncodedSemanticClassificationsRequest extends Proto.FileRequest {
+    arguments: EncodedSemanticClassificationsRequestArgs
+  }
+
+  /**
+   * Arguments for EncodedSemanticClassificationsRequest request.
+   */
+  export interface EncodedSemanticClassificationsRequestArgs extends Proto.FileRequestArgs {
+    /**
+     * Start position of the span.
+     */
+    start: number
+    /**
+     * Length of the span.
+     */
+    length: number
+  }
+
+  export const enum EndOfLineState {
+    None,
+    InMultiLineCommentTrivia,
+    InSingleQuoteStringLiteral,
+    InDoubleQuoteStringLiteral,
+    InTemplateHeadOrNoSubstitutionTemplate,
+    InTemplateMiddleOrTail,
+    InTemplateSubstitutionPosition,
+  }
+
+  export const enum ClassificationType {
+    comment = 1,
+    identifier = 2,
+    keyword = 3,
+    numericLiteral = 4,
+    operator = 5,
+    stringLiteral = 6,
+    regularExpressionLiteral = 7,
+    whiteSpace = 8,
+    text = 9,
+    punctuation = 10,
+    className = 11,
+    enumName = 12,
+    interfaceName = 13,
+    moduleName = 14,
+    typeParameterName = 15,
+    typeAliasName = 16,
+    parameterName = 17,
+    docCommentTagName = 18,
+    jsxOpenTagName = 19,
+    jsxCloseTagName = 20,
+    jsxSelfClosingTagName = 21,
+    jsxAttribute = 22,
+    jsxText = 23,
+    jsxAttributeStringLiteralValue = 24,
+    bigintLiteral = 25,
+  }
+
+  export interface EncodedSemanticClassificationsResponse extends Proto.Response {
+    body?: {
+      endOfLineState: EndOfLineState
+      spans: number[]
+    }
+  }
+
+  export interface ExtendedTsServerRequests {
+    'encodedSemanticClassifications-full': [ExperimentalProtocol.EncodedSemanticClassificationsRequestArgs, ExperimentalProtocol.EncodedSemanticClassificationsResponse]
+  }
+}
+
+// mapping for the original ExperimentalProtocol.ClassificationType from TypeScript (only used when plugin is not available)
+const tokenTypeMap: number[] = []
+tokenTypeMap[ExperimentalProtocol.ClassificationType.className] = TokenType.class
+tokenTypeMap[ExperimentalProtocol.ClassificationType.enumName] = TokenType.enum
+tokenTypeMap[ExperimentalProtocol.ClassificationType.interfaceName] = TokenType.interface
+tokenTypeMap[ExperimentalProtocol.ClassificationType.moduleName] = TokenType.namespace
+tokenTypeMap[ExperimentalProtocol.ClassificationType.typeParameterName] = TokenType.typeParameter
+tokenTypeMap[ExperimentalProtocol.ClassificationType.typeAliasName] = TokenType.type
+tokenTypeMap[ExperimentalProtocol.ClassificationType.parameterName] = TokenType.parameter
+
diff --git a/src/server/features/signatureHelp.ts b/src/server/features/signatureHelp.ts
index c0a48d0..2a74a89 100644
--- a/src/server/features/signatureHelp.ts
+++ b/src/server/features/signatureHelp.ts
@@ -60,13 +60,13 @@ export default class TypeScriptSignatureHelpProvider implements SignatureHelpPro
   private convertSignature(item: Proto.SignatureHelpItem): SignatureInformation {
     let parameters = item.parameters.map(p => {
       return {
-        label: Previewer.plain(p.displayParts),
+        label: Previewer.plainWithLinks(p.displayParts),
         documentation: Previewer.markdownDocumentation(p.documentation, [])
       }
     })
-    let label = Previewer.plain(item.prefixDisplayParts)
-    label += parameters.map(parameter => parameter.label).join(Previewer.plain(item.separatorDisplayParts))
-    label += Previewer.plain(item.suffixDisplayParts)
+    let label = Previewer.plainWithLinks(item.prefixDisplayParts)
+    label += parameters.map(parameter => parameter.label).join(Previewer.plainWithLinks(item.separatorDisplayParts))
+    label += Previewer.plainWithLinks(item.suffixDisplayParts)
     return {
       label,
       documentation: Previewer.markdownDocumentation(
diff --git a/src/server/features/tagClosing.ts b/src/server/features/tagClosing.ts
index bb53810..b11ffb4 100644
--- a/src/server/features/tagClosing.ts
+++ b/src/server/features/tagClosing.ts
@@ -5,13 +5,10 @@
 import { CancellationTokenSource, Disposable, disposeAll, Position, Range, snippetManager, events, workspace, InsertChange } from 'coc.nvim'
 import * as Proto from '../protocol'
 import { ITypeScriptServiceClient } from '../typescriptService'
-import API from '../utils/api'
 import SnippetString from '../utils/SnippetString'
 import * as typeConverters from '../utils/typeConverters'
 
 export default class TagClosing implements Disposable {
-  public static readonly minVersion = API.v300
-
   private static _configurationLanguages: Record<string, string> = {
     'javascriptreact': 'javascript',
     'typescriptreact': 'typescript',
@@ -21,27 +18,21 @@ export default class TagClosing implements Disposable {
   private _disposed = false
   private _timeout: NodeJS.Timer | undefined = undefined
   private _cancel: CancellationTokenSource | undefined = undefined
-  private lastInsert: string
 
   constructor(
     private readonly client: ITypeScriptServiceClient,
     private readonly descriptionLanguageId: string
   ) {
-    events.on('InsertCharPre', character => {
-      this.lastInsert = character
-    }, null, this._disposables)
-    events.on('TextChangedI', this.onChange, this, this._disposables)
-    events.on('TextChangedP', this.onChange, this, this._disposables)
+    events.on('TextInsert', this.onInsertChange, this, this._disposables)
   }
 
-  private async onChange(bufnr: number, change: InsertChange): Promise<void> {
+  private async onInsertChange(bufnr: number, change: InsertChange, lastInsert: string): Promise<void> {
     let doc = workspace.getDocument((bufnr))
     if (!doc || !doc.attached) return
     let enabled = this.isEnabled(doc.filetype, doc.uri)
     if (!enabled) return
     let { pre, changedtick, lnum } = change
-    if (!pre.endsWith('/') && !pre.endsWith('>')) return
-    if (!pre.endsWith(this.lastInsert)) return
+    if (lastInsert !== '/' && lastInsert != '>') return
     if (pre.length > 1 && pre[pre.length - 2] == '>') return
     const filepath = this.client.toOpenedFilePath(doc.uri)
     if (!filepath) return
@@ -73,7 +64,6 @@ export default class TagClosing implements Disposable {
         return
       }
       if (this._disposed) return
-
       const insertion = response.body
       if (doc.changedtick === changedtick) {
         snippetManager.insertSnippet(
@@ -82,7 +72,7 @@ export default class TagClosing implements Disposable {
           Range.create(position, position)
         )
       }
-    }, 50)
+    }, 30)
   }
 
   private isEnabled(languageId: string, uri: string): boolean {
diff --git a/src/server/features/watchBuild.ts b/src/server/features/watchBuild.ts
index ea40c7b..7ea12c3 100644
--- a/src/server/features/watchBuild.ts
+++ b/src/server/features/watchBuild.ts
@@ -1,24 +1,10 @@
-import { commands, disposeAll, StatusBarItem, TaskOptions, Uri, window, workspace } from 'coc.nvim'
+import { commands, Disposable, disposeAll, StatusBarItem, TaskOptions, Uri, window, workspace } from 'coc.nvim'
 import path from 'path'
-import { Disposable, Location } from 'vscode-languageserver-protocol'
 import TypeScriptServiceClient from '../typescriptServiceClient'
 
 const countRegex = /Found\s+(\d+)\s+error/
 const errorRegex = /^(.+)\((\d+),(\d+)\):\s(\w+)\sTS(\d+):\s*(.+)$/
 
-interface ErrorItem {
-  location: Location
-  text: string
-  type: string
-}
-
-enum TscStatus {
-  INIT,
-  COMPILING,
-  RUNNING,
-  ERROR,
-}
-
 export default class WatchProject implements Disposable {
   private disposables: Disposable[] = []
   public static readonly id: string = 'tsserver.watchBuild'
@@ -119,7 +105,7 @@ export default class WatchProject implements Disposable {
       return
     }
 
-    const tsconfigPath = workspace.getConfiguration('tsserver').get<string>('tsconfigPath', 'tsconfig.json');
+    const tsconfigPath = workspace.getConfiguration('tsserver').get<string>('tsconfigPath', 'tsconfig.json')
     let find = await workspace.findUp([tsconfigPath])
     if (!find) {
       window.showMessage(`${tsconfigPath} not found!`, 'error')
diff --git a/src/server/index.ts b/src/server/index.ts
index 92a0b1a..2d42456 100644
--- a/src/server/index.ts
+++ b/src/server/index.ts
@@ -1,6 +1,8 @@
-import { disposeAll, IServiceProvider, ServiceStat, workspace, WorkspaceConfiguration } from 'coc.nvim'
+import { commands, disposeAll, IServiceProvider, ServiceStat, workspace, WorkspaceConfiguration } from 'coc.nvim'
 import { Disposable, DocumentSelector, Emitter, Event } from 'vscode-languageserver-protocol'
 import { PluginManager } from '../utils/plugins'
+import { AutoFixCommand, Command, ConfigurePluginCommand, FileReferencesCommand, OpenTsServerLogCommand, ReloadProjectsCommand, TypeScriptGoToProjectConfigCommand } from './commands'
+import { OrganizeImportsCommand, SourceImportsCommand } from './organizeImports'
 import TypeScriptServiceClientHost from './typescriptServiceClientHost'
 import { LanguageDescription, standardLanguageDescriptions } from './utils/languageDescription'
 
@@ -10,23 +12,69 @@ export default class TsserverService implements IServiceProvider {
   public enable: boolean
   // supported language types
   public selector: DocumentSelector
-  public state = ServiceStat.Initial
+  public _state = ServiceStat.Initial
   public clientHost: TypeScriptServiceClientHost
   private _onDidServiceReady = new Emitter<void>()
   public readonly onServiceReady: Event<void> = this._onDidServiceReady.event
   private readonly disposables: Disposable[] = []
   private descriptions: LanguageDescription[] = []
 
-  constructor(private pluginManager: PluginManager) {
+  constructor(private pluginManager: PluginManager, private readonly subscriptions: Disposable[]) {
     const config = workspace.getConfiguration('tsserver')
-    const enableJavascript = !!config.get<boolean>('enableJavascript')
+    const enableJavascript = config.get<boolean>('enableJavascript', true)
     this.enable = config.get<boolean>('enable')
     this.descriptions = standardLanguageDescriptions.filter(o => {
       return enableJavascript ? true : o.id != 'javascript'
     })
+    workspace.onDidChangeConfiguration(e => {
+      if (e.affectsConfiguration('tsserver')) {
+        const config = workspace.getConfiguration('tsserver')
+        let enable = this.enable
+        this.enable = config.get<boolean>('enable', true)
+        if (enable !== this.enable) {
+          if (this.enable) {
+            void this.start()
+          } else {
+            void this.stop()
+          }
+        }
+      }
+    })
     this.selector = this.descriptions.reduce((arr, c) => {
-      return arr.concat(c.modeIds)
+      return arr.concat(c.languageIds)
     }, [])
+    this.registCommands()
+  }
+
+  // public state = ServiceStat.Initial
+
+  public get state(): ServiceStat {
+    if (this.clientHost) {
+      return this.clientHost.serviceClient.state
+    }
+    return this._state
+  }
+
+  private registCommands(): void {
+    let { subscriptions } = this
+    const registCommand = (cmd: Command): void => {
+      let { id, execute } = cmd
+      subscriptions.push(commands.registerCommand(id as string, execute, cmd))
+    }
+    registCommand(new ConfigurePluginCommand(this.pluginManager))
+    registCommand(new AutoFixCommand(this))
+    registCommand(new ReloadProjectsCommand(this))
+    registCommand(new FileReferencesCommand(this))
+    registCommand(new OpenTsServerLogCommand(this))
+    registCommand(new TypeScriptGoToProjectConfigCommand(this))
+    registCommand(new OrganizeImportsCommand(this))
+    registCommand(new SourceImportsCommand(this))
+    registCommand({
+      id: 'tsserver.restart',
+      execute: (): void => {
+        this.restart()
+      }
+    })
   }
 
   public get config(): WorkspaceConfiguration {
@@ -51,44 +99,43 @@ export default class TsserverService implements IServiceProvider {
     })
   }
 
-  public start(): Promise<void> {
-    if (this.clientHost) return
-    this.state = ServiceStat.Starting
-    this.clientHost = new TypeScriptServiceClientHost(this.descriptions, this.pluginManager)
-    this.disposables.push(this.clientHost)
+  public async start(): Promise<void> {
+    if (!this.enable || this._state == ServiceStat.Starting) return
+    this._state = ServiceStat.Starting
+    if (this.clientHost) {
+      let client = this.clientHost.serviceClient
+      client.restartTsServer()
+      return
+    }
+    let tscPath = await workspace.nvim.getVar('Tsserver_path') as string | null
+    this.clientHost = new TypeScriptServiceClientHost(this.descriptions, this.pluginManager, tscPath)
     let client = this.clientHost.serviceClient
-    return new Promise(resolve => {
-      let started = false
-      client.onTsServerStarted(() => {
-        Object.defineProperty(this, 'state', {
-          get: () => {
-            return this.clientHost.serviceClient.state
-          }
-        })
+    await new Promise(resolve => {
+      client.onReady(() => {
         this._onDidServiceReady.fire(void 0)
-        if (!started) {
-          started = true
-          resolve()
-        }
+        resolve(undefined)
       })
     })
   }
 
-  public dispose(): void {
-    disposeAll(this.disposables)
-  }
-
   public async restart(): Promise<void> {
-    if (!this.clientHost) return
-    let client = this.clientHost.serviceClient
-    await client.restartTsServer()
+    if (!this.enable) return
+    await this.stop()
+    await this.start()
   }
 
   public async stop(): Promise<void> {
     if (!this.clientHost) return
-    this.clientHost.reset()
     let client = this.clientHost.serviceClient
     await client.stop()
-    return
+    this.clientHost?.dispose()
+    this.clientHost = null
+    this._state = ServiceStat.Stopped
+  }
+
+  public dispose(): void {
+    void this.stop()
+    this._onDidServiceReady.dispose()
+    disposeAll(this.disposables)
   }
 }
diff --git a/src/server/languageProvider.ts b/src/server/languageProvider.ts
index 660cc4a..78b9c2b 100644
--- a/src/server/languageProvider.ts
+++ b/src/server/languageProvider.ts
@@ -19,16 +19,19 @@ import FormattingProvider from './features/formatting'
 import HoverProvider from './features/hover'
 import ImplementationsCodeLensProvider from './features/implementationsCodeLens'
 import ImportfixProvider from './features/importFix'
+import TypeScriptInlayHintsProvider from './features/inlayHints'
 import InstallModuleProvider from './features/moduleInstall'
 import QuickfixProvider from './features/quickfix'
 import RefactorProvider from './features/refactor'
 import ReferenceProvider from './features/references'
 import ReferencesCodeLensProvider from './features/referencesCodeLens'
 import RenameProvider from './features/rename'
+import SemanticTokensProvider from './features/semanticTokens'
 import SignatureHelpProvider from './features/signatureHelp'
 import SmartSelection from './features/smartSelect'
 import TagClosing from './features/tagClosing'
 import UpdateImportsOnFileRenameHandler from './features/updatePathOnRename'
+import { JsDocCompletionProvider } from './features/jsDocCompletion'
 import { OrganizeImportsCodeActionProvider } from './organizeImports'
 import TypeScriptServiceClient from './typescriptServiceClient'
 import API from './utils/api'
@@ -49,13 +52,8 @@ export default class LanguageProvider {
   ) {
     workspace.onDidChangeConfiguration(this.configurationChanged, this, this.disposables)
     this.configurationChanged()
-
-    let initialized = false
-    client.onTsServerStarted(async () => { // tslint:disable-line
-      if (!initialized) {
-        initialized = true
-        this.registerProviders(client, typingsStatus)
-      }
+    client.onReady(() => {
+      this.registerProviders(client, typingsStatus)
     })
   }
 
@@ -77,14 +75,20 @@ export default class LanguageProvider {
     client: TypeScriptServiceClient,
     typingsStatus: TypingsStatus
   ): void {
-    let languageIds = this.description.modeIds
-    let clientId = `tsserver-${this.description.id}`
+    let languageIds = this.description.languageIds
+    let clientId = `tsc-${this.description.id}`
     this._register(
       languages.registerCompletionItemProvider(clientId, 'TSC', languageIds,
         new CompletionItemProvider(client, typingsStatus, this.fileConfigurationManager, this.description.id),
         CompletionItemProvider.triggerCharacters
       )
     )
+    this._register(
+      languages.registerCompletionItemProvider(`tsc-${this.description.id}-jsdoc`, 'TSC', languageIds,
+        new JsDocCompletionProvider(client, this.description, this.fileConfigurationManager),
+        ['*', ' ']
+      )
+    )
     if (this.client.apiVersion.gte(API.v230)) {
       this._register(languages.registerCompletionItemProvider(
         `${this.description.id}-directive`,
@@ -107,9 +111,18 @@ export default class LanguageProvider {
     this._register(languages.registerDocumentRangeFormatProvider(languageIds, formatProvider))
     this._register(languages.registerOnTypeFormattingEditProvider(languageIds, formatProvider, [';', '}', '\n', String.fromCharCode(27)]))
     this._register(languages.registerCodeActionProvider(languageIds, new InstallModuleProvider(client), 'tsserver'))
-    if (typeof languages['registerCallHierarchyProvider'] === 'function') {
+    if (this.client.apiVersion.gte(API.v380) && typeof languages['registerCallHierarchyProvider'] === 'function') {
       this._register(languages.registerCallHierarchyProvider(languageIds, new CallHierarchyProvider(client)))
     }
+    if (this.client.apiVersion.gte(API.v370)) {
+      const provider = new SemanticTokensProvider(client)
+      if (typeof languages['registerDocumentSemanticTokensProvider'] === 'function') {
+        this._register(languages.registerDocumentSemanticTokensProvider(languageIds, provider, provider.getLegend()))
+      }
+      if (typeof languages['registerDocumentRangeSemanticTokensProvider'] === 'function') {
+        this._register(languages.registerDocumentRangeSemanticTokensProvider(languageIds, provider, provider.getLegend()))
+      }
+    }
 
     let { fileConfigurationManager } = this
     let conf = fileConfigurationManager.getLanguageConfiguration(this.id)
@@ -145,10 +158,10 @@ export default class LanguageProvider {
         'tsserver', [CodeActionKind.QuickFix]))
     let cachedResponse = new CachedNavTreeResponse()
     if (this.client.apiVersion.gte(API.v206) && conf.get<boolean>('referencesCodeLens.enable')) {
-      this._register(languages.registerCodeLensProvider(languageIds, new ReferencesCodeLensProvider(client, cachedResponse)))
+      this._register(languages.registerCodeLensProvider(languageIds, new ReferencesCodeLensProvider(client, cachedResponse, this.description.id)))
     }
     if (this.client.apiVersion.gte(API.v220) && conf.get<boolean>('implementationsCodeLens.enable')) {
-      this._register(languages.registerCodeLensProvider(languageIds, new ImplementationsCodeLensProvider(client, cachedResponse)))
+      this._register(languages.registerCodeLensProvider(languageIds, new ImplementationsCodeLensProvider(client, cachedResponse, this.description.id)))
     }
     if (this.client.apiVersion.gte(API.v350)) {
       this._register(languages.registerSelectionRangeProvider(languageIds, new SmartSelection(this.client)))
@@ -156,16 +169,34 @@ export default class LanguageProvider {
     if (this.client.apiVersion.gte(API.v300)) {
       this._register(new TagClosing(this.client, this.description.id))
     }
+    if (this.client.apiVersion.gte(API.v440)) {
+      if (typeof languages.registerInlayHintsProvider === 'function') {
+        let provider = new TypeScriptInlayHintsProvider(this.description, this.client, this.fileConfigurationManager)
+        this._register(provider)
+        this._register(languages.registerInlayHintsProvider(languageIds, provider))
+      } else {
+        this.client.logger.error(`languages.registerInlayHintsProvider is not a function, inlay hints won't work`)
+      }
+    }
   }
 
   public handles(resource: string, doc: TextDocument): boolean {
-    if (doc && this.description.modeIds.indexOf(doc.languageId) >= 0) {
+    if (doc && this.description.languageIds.includes(doc.languageId)) {
       return true
     }
-    const base = path.basename(Uri.parse(resource).fsPath)
+    return this.handlesConfigFile(Uri.parse(resource))
+  }
+
+  private handlesConfigFile(uri: Uri): boolean {
+    const base = path.basename(uri.fsPath)
     return !!base && (!!this.description.configFilePattern && this.description.configFilePattern.test(base))
   }
 
+  public handlesUri(resource: Uri): boolean {
+    const ext = path.extname(resource.path).slice(1).toLowerCase()
+    return this.description.standardFileExtensions.includes(ext) || this.handlesConfigFile(resource)
+  }
+
   private get id(): string { // tslint:disable-line
     return this.description.id
   }
diff --git a/src/server/organizeImports.ts b/src/server/organizeImports.ts
index 4cca6c7..c5d4ff7 100644
--- a/src/server/organizeImports.ts
+++ b/src/server/organizeImports.ts
@@ -19,9 +19,10 @@ export class OrganizeImportsCommand implements Command {
   ) {
   }
 
-  private async _execute(client: TypeScriptServiceClient, document: TextDocument): Promise<WorkspaceEdit | TextEdit[] | null> {
+  private async _execute(client: TypeScriptServiceClient, document: TextDocument, sortOnly = false): Promise<WorkspaceEdit | TextEdit[] | null> {
     let file = client.toPath(document.uri)
     const args: Proto.OrganizeImportsRequestArgs = {
+      skipDestructiveCodeActions: sortOnly,
       scope: {
         type: 'file',
         args: {
@@ -38,7 +39,7 @@ export class OrganizeImportsCommand implements Command {
       client,
       response.body
     )
-    let keys = Object.keys(edit.changes)
+    let keys = Object.keys(edit.changes || {})
     if (keys.length == 1) {
       let doc = workspace.getDocument(keys[0])
       if (doc) {
@@ -49,7 +50,7 @@ export class OrganizeImportsCommand implements Command {
     if (edit) await workspace.applyEdit(edit)
   }
 
-  public async execute(document?: TextDocument): Promise<void> {
+  public async execute(document?: TextDocument, sortOnly = false): Promise<void> {
     let client = await this.service.getClientHost()
     if (!document) {
       let doc = await workspace.document
@@ -61,10 +62,14 @@ export class OrganizeImportsCommand implements Command {
       }
       document = doc.textDocument
     }
-    await this._execute(client.serviceClient, document)
+    await this._execute(client.serviceClient, document, sortOnly)
   }
 }
 
+export class SourceImportsCommand extends OrganizeImportsCommand {
+  public readonly id = 'tsserver.sortImports'
+}
+
 export class OrganizeImportsCodeActionProvider implements CodeActionProvider {
   // public static readonly minVersion = API.v280
 
@@ -91,11 +96,16 @@ export class OrganizeImportsCodeActionProvider implements CodeActionProvider {
     }
     await this.fileConfigManager.ensureConfigurationForDocument(document, token)
 
-    const action = CodeAction.create('Organize Imports', {
+    const organizeImportsAction = CodeAction.create('Organize Imports', {
       title: '',
       command: 'tsserver.organizeImports',
       arguments: [document]
     }, CodeActionKind.SourceOrganizeImports)
-    return [action]
+    const sortImportsAction = CodeAction.create('Sort Imports', {
+      title: '',
+      command: 'tsserver.sortImports',
+      arguments: [document, true]
+    }, 'source.sortImports')
+    return [organizeImportsAction, sortImportsAction]
   }
 }
diff --git a/src/server/tsServerProcess.ts b/src/server/tsServerProcess.ts
new file mode 100644
index 0000000..5877237
--- /dev/null
+++ b/src/server/tsServerProcess.ts
@@ -0,0 +1,55 @@
+
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+import cp from 'child_process'
+import { Disposable } from 'vscode-languageserver-protocol'
+import * as Proto from './protocol'
+import { Reader } from './utils/wireProtocol'
+
+export interface ToCancelOnResourceChanged {
+  readonly resource: string
+  cancel(): void
+}
+
+export default class ForkedTsServerProcess implements Disposable {
+  private readonly _reader: Reader<Proto.Response>
+
+  constructor(private childProcess: cp.ChildProcess) {
+    this._reader = new Reader<Proto.Response>(this.childProcess.stdout)
+  }
+
+  public readonly toCancelOnResourceChange = new Set<ToCancelOnResourceChanged>()
+
+  public onExit(cb: (err: any, signal: string) => void): void {
+    this.childProcess.on('exit', cb)
+  }
+
+  public write(serverRequest: Proto.Request): void {
+    this.childProcess.stdin.write(
+      JSON.stringify(serverRequest) + '\r\n',
+      'utf8'
+    )
+  }
+
+  public onData(handler: (data: Proto.Response) => void): void {
+    this._reader.onData(handler)
+  }
+
+  public onError(handler: (err: Error) => void): void {
+    this.childProcess.on('error', handler)
+    this._reader.onError(handler)
+  }
+
+  public kill(): void {
+    this.toCancelOnResourceChange.clear()
+    this.childProcess.kill()
+    this._reader.dispose()
+  }
+
+  public dispose(): void {
+    this.toCancelOnResourceChange.clear()
+    this._reader.dispose()
+  }
+}
diff --git a/src/server/typescriptService.ts b/src/server/typescriptService.ts
index 2b6f7b6..f576567 100644
--- a/src/server/typescriptService.ts
+++ b/src/server/typescriptService.ts
@@ -34,7 +34,7 @@ export interface TypeScriptServerPlugin {
   readonly languages: string[]
 }
 
-export enum ExectuionTarget {
+export enum ExecutionTarget {
   Semantic,
   Syntax
 }
@@ -43,7 +43,7 @@ export type ExecConfig = {
   readonly lowPriority?: boolean
   readonly nonRecoverable?: boolean
   readonly cancelOnResourceChange?: string
-  readonly executionTarget?: ExectuionTarget
+  readonly executionTarget?: ExecutionTarget
 }
 
 export interface TypeScriptRequestTypes {
@@ -84,6 +84,7 @@ export interface TypeScriptRequestTypes {
   'provideCallHierarchyIncomingCalls': [Proto.FileLocationRequestArgs, Proto.ProvideCallHierarchyIncomingCallsResponse]
   'provideCallHierarchyOutgoingCalls': [Proto.FileLocationRequestArgs, Proto.ProvideCallHierarchyOutgoingCallsResponse]
   'fileReferences': [Proto.FileRequestArgs, Proto.FileReferencesResponse]
+  'provideInlayHints': [Proto.InlayHintsRequestArgs, Proto.InlayHintsResponse]
 }
 
 export interface ITypeScriptServiceClient {
diff --git a/src/server/typescriptServiceClient.ts b/src/server/typescriptServiceClient.ts
index 301d7f4..5c6c58c 100644
--- a/src/server/typescriptServiceClient.ts
+++ b/src/server/typescriptServiceClient.ts
@@ -2,13 +2,12 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-import cp from 'child_process'
 import { Document, ServiceStat, Uri, window, workspace } from 'coc.nvim'
 import fs from 'fs'
 import os from 'os'
 import path from 'path'
 import { CancellationToken, CancellationTokenSource, Disposable, Emitter, Event } from 'vscode-languageserver-protocol'
-import * as fileSchemes from '../utils/fileSchemess'
+import * as fileSchemes from '../utils/fileSchemes'
 import { PluginManager } from '../utils/plugins'
 import { CallbackMap } from './callbackMap'
 import BufferSyncSupport from './features/bufferSyncSupport'
@@ -20,50 +19,12 @@ import { ExecConfig, ITypeScriptServiceClient, ServerResponse } from './typescri
 import API from './utils/api'
 import { TsServerLogLevel, TypeScriptServiceConfiguration } from './utils/configuration'
 import Logger from './utils/logger'
-import { fork, getTempDirectory, getTempFile, IForkOptions, makeRandomHexString } from './utils/process'
+import { fork, getTempDirectory, createTempDirectory, getTempFile, IForkOptions, makeRandomHexString } from './utils/process'
 import Tracer from './utils/tracer'
 import { inferredProjectConfig } from './utils/tsconfig'
 import { TypeScriptVersion, TypeScriptVersionProvider } from './utils/versionProvider'
 import VersionStatus from './utils/versionStatus'
-import { ICallback, Reader } from './utils/wireProtocol'
-
-interface ToCancelOnResourceChanged {
-  readonly resource: string
-  cancel(): void
-}
-
-class ForkedTsServerProcess {
-  constructor(private childProcess: cp.ChildProcess) {}
-
-  public readonly toCancelOnResourceChange = new Set<ToCancelOnResourceChanged>()
-
-  public onError(cb: (err: Error) => void): void {
-    this.childProcess.on('error', cb)
-  }
-
-  public onExit(cb: (err: any) => void): void {
-    this.childProcess.on('exit', cb)
-  }
-
-  public write(serverRequest: Proto.Request): void {
-    this.childProcess.stdin.write(
-      JSON.stringify(serverRequest) + '\r\n',
-      'utf8'
-    )
-  }
-
-  public createReader(
-    callback: ICallback<Proto.Response>,
-    onError: (error: any) => void
-  ): void {
-    // tslint:disable-next-line:no-unused-expression
-    new Reader<Proto.Response>(this.childProcess.stdout, callback, onError)
-  }
-
-  public kill(): void {
-    this.childProcess.kill()
-  }
-}
+import ForkedTsServerProcess, { ToCancelOnResourceChanged } from './tsServerProcess'
 
 export interface TsDiagnostics {
   readonly kind: DiagnosticKind
@@ -72,6 +33,8 @@ export interface TsDiagnostics {
 }
 
 export default class TypeScriptServiceClient implements ITypeScriptServiceClient {
+  private token: number = 0
+  private noRestart = false
   public state = ServiceStat.Initial
   public readonly logger: Logger = new Logger()
   public readonly bufferSyncSupport: BufferSyncSupport
@@ -84,14 +47,13 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
   private versionProvider: TypeScriptVersionProvider
   private tsServerLogFile: string | null = null
   private tsServerProcess: ForkedTsServerProcess | undefined
-  private servicePromise: Thenable<ForkedTsServerProcess> | null
-  private lastError: Error | null
   private lastStart: number
   private numberRestarts: number
   private cancellationPipeName: string | null = null
   private _callbacks = new CallbackMap<Proto.Response>()
   private _requestQueue = new RequestQueue()
   private _pendingResponses = new Set<number>()
+  private _onReady?: { promise: Promise<void>; resolve: () => void; reject: () => void }
 
   private versionStatus: VersionStatus
   private readonly _onTsServerStarted = new Emitter<API>()
@@ -108,13 +70,20 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
 
   constructor(
     public readonly pluginManager: PluginManager,
-    public readonly modeIds: string[]
+    public readonly modeIds: string[],
+    private readonly tscPathVim: string | undefined
   ) {
     this.pathSeparator = path.sep
     this.lastStart = Date.now()
-    this.servicePromise = null
-    this.lastError = null
     this.numberRestarts = 0
+    let resolve: () => void
+    let reject: () => void
+    const p = new Promise<void>((res, rej) => {
+      resolve = res
+      reject = rej
+    })
+    this._onReady = { promise: p, resolve: resolve!, reject: reject! }
+
     this.fileConfigurationManager = new FileConfigurationManager(this)
     this._configuration = TypeScriptServiceConfiguration.loadFromWorkspace()
     this.versionProvider = new TypeScriptVersionProvider(this._configuration)
@@ -130,7 +99,7 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
     }, null, this.disposables)
 
     this.bufferSyncSupport = new BufferSyncSupport(this, modeIds)
-    this.onTsServerStarted(() => {
+    this.onReady(() => {
       this.bufferSyncSupport.listen()
     })
 
@@ -163,17 +132,20 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
     return this._configuration
   }
 
+  public onReady(f: () => void): Promise<void> {
+    return this._onReady!.promise.then(f)
+  }
+
   public dispose(): void {
-    if (this.servicePromise) {
-      this.servicePromise
-        .then(childProcess => {
-          childProcess.kill()
-        })
-        .then(undefined, () => void 0)
-    }
+    this.tsServerProcess.kill()
+    this.diagnosticsManager.dispose()
     this.bufferSyncSupport.dispose()
     this.logger.dispose()
     this._onTsServerStarted.dispose()
+    this._onProjectLanguageServiceStateChanged.dispose()
+    this._onDidBeginInstallTypings.dispose()
+    this._onDidEndInstallTypings.dispose()
+    this._onTypesInstallerInitializationFailed.dispose()
     this._onResendModelsRequested.dispose()
     this.versionStatus.dispose()
   }
@@ -186,40 +158,29 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
     this.logger.error(message, data)
   }
 
-  public restartTsServer(): Promise<any> {
-    const start = () => {
-      this.servicePromise = this.startService(true)
-      return this.servicePromise
-    }
-
-    if (this.servicePromise) {
-      return Promise.resolve(this.servicePromise.then(childProcess => {
-        this.state = ServiceStat.Stopping
-        this.info('Killing TS Server')
-        this.isRestarting = true
-        childProcess.kill()
-        this.servicePromise = null
-      }).then(start))
-    } else {
-      return Promise.resolve(start())
+  public restartTsServer(): void {
+    if (this.tsServerProcess) {
+      this.state = ServiceStat.Stopping
+      this.info('Killing TS Server')
+      this.isRestarting = true
+      this.tsServerProcess.kill()
     }
+    this.startService(true)
   }
 
   public stop(): Promise<void> {
-    if (!this.servicePromise) return
-    return new Promise((resolve, reject) => {
-      this.servicePromise.then(childProcess => {
-        if (this.state == ServiceStat.Running) {
-          this.info('Killing TS Server')
-          childProcess.onExit(() => {
-            resolve()
-          })
-          childProcess.kill()
-          this.servicePromise = null
-        } else {
+    return new Promise(resolve => {
+      let { tsServerProcess } = this
+      if (tsServerProcess && this.state == ServiceStat.Running) {
+        this.info('Killing TS Server')
+        tsServerProcess.onExit(() => {
           resolve()
-        }
-      }, reject)
+        })
+        this.noRestart = true
+        tsServerProcess.kill()
+      } else {
+        resolve()
+      }
     })
   }
 
@@ -253,125 +214,101 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
     return this._tscPath
   }
 
-  private service(): Thenable<ForkedTsServerProcess> {
-    if (this.servicePromise) {
-      return this.servicePromise
-    }
-    if (this.lastError) {
-      return Promise.reject<ForkedTsServerProcess>(this.lastError)
-    }
-    return this.startService().then(() => {
-      if (this.servicePromise) {
-        return this.servicePromise
-      }
-    })
-  }
-
   public ensureServiceStarted(): void {
-    if (!this.servicePromise) {
-      this.startService().catch(err => {
-        window.showMessage(`TSServer start failed: ${err.message}`, 'error')
-        this.error(`Service start failed: ${err.stack}`)
-      })
+    if (!this.tsServerProcess) {
+      this.startService()
     }
   }
 
-  private async startService(resendModels = false): Promise<ForkedTsServerProcess> {
+  private startService(resendModels = false): ForkedTsServerProcess | undefined {
     const { ignoreLocalTsserver } = this.configuration
     let currentVersion: TypeScriptVersion
-    if (!ignoreLocalTsserver) currentVersion = this.versionProvider.getLocalVersion()
+    if (this.tscPathVim) currentVersion = this.versionProvider.getVersionFromTscPath(this.tscPathVim)
+    if (!currentVersion && !ignoreLocalTsserver) currentVersion = this.versionProvider.getLocalVersion()
     if (!currentVersion || !fs.existsSync(currentVersion.tsServerPath)) {
+      this.info('Local tsserver not found, using bundled tsserver with coc-tsserver.')
       currentVersion = this.versionProvider.getDefaultVersion()
     }
     if (!currentVersion || !currentVersion.isValid) {
       if (this.configuration.globalTsdk) {
-        window.showMessage(`Can not find typescript module, in 'tsserver.tsdk': ${this.configuration.globalTsdk}`, 'error')
+        window.showErrorMessage(`Can not find typescript module, in 'tsserver.tsdk': ${this.configuration.globalTsdk}`)
       } else {
-        window.showMessage(`Can not find typescript module, run ':CocInstall coc-tsserver' to fix it!`, 'error')
+        window.showErrorMessage(`Can not find typescript module, run ':CocInstall coc-tsserver' to fix it!`)
       }
       return
     }
     this._apiVersion = currentVersion.version
     this._tscPath = currentVersion.tscPath
+    workspace.nvim.setVar('Tsserver_path', this._tscPath, true)
     this.versionStatus.onDidChangeTypeScriptVersion(currentVersion)
-    this.lastError = null
-    const tsServerForkArgs = await this.getTsServerArgs(currentVersion)
-    const debugPort = this._configuration.debugPort
-    const maxTsServerMemory = this._configuration.maxTsServerMemory
-    const options = {
-      execArgv: [
-        ...(debugPort ? [`--inspect=${debugPort}`] : []), // [`--debug-brk=5859`]
-        ...(maxTsServerMemory ? [`--max-old-space-size=${maxTsServerMemory}`] : []),
-      ],
-      cwd: workspace.root
-    }
-    this.servicePromise = this.startProcess(currentVersion, tsServerForkArgs, options, resendModels)
-    return this.servicePromise
+    const tsServerForkArgs = this.getTsServerArgs(currentVersion)
+    const options = { execArgv: this.getExecArgv() }
+    return this.startProcess(currentVersion, tsServerForkArgs, options, resendModels)
   }
 
-  private startProcess(currentVersion: TypeScriptVersion, args: string[], options: IForkOptions, resendModels: boolean): Promise<ForkedTsServerProcess> {
+  private getExecArgv(): string[] {
+    const args: string[] = []
+    const debugPort = getDebugPort()
+    if (debugPort) {
+      const isBreak = process.env[process.env.remoteName ? 'TSS_REMOTE_DEBUG_BRK' : 'TSS_DEBUG_BRK'] !== undefined
+      const inspectFlag = isBreak ? '--inspect-brk' : '--inspect'
+      args.push(`${inspectFlag}=${debugPort}`)
+    }
+    const maxTsServerMemory = this._configuration.maxTsServerMemory
+    if (maxTsServerMemory) {
+      args.push(`--max-old-space-size=${maxTsServerMemory}`)
+    }
+    return args
+  }
+
+  private startProcess(currentVersion: TypeScriptVersion, args: string[], options: IForkOptions, resendModels: boolean): ForkedTsServerProcess {
+    const myToken = ++this.token
     this.state = ServiceStat.Starting
-    return new Promise((resolve, reject) => {
-      try {
-        fork(
-          currentVersion.tsServerPath,
-          args,
-          options,
-          this.logger,
-          (err: any, childProcess: cp.ChildProcess | null) => {
-            if (err || !childProcess) {
-              this.state = ServiceStat.StartFailed
-              this.lastError = err
-              this.error('Starting TSServer failed with error.', err.stack)
-              return
-            }
-            this.state = ServiceStat.Running
-            this.info('Started TSServer', JSON.stringify(currentVersion, null, 2))
-            const handle = new ForkedTsServerProcess(childProcess)
-            this.tsServerProcess = handle
-            this.lastStart = Date.now()
-
-            handle.onError((err: Error) => {
-              this.lastError = err
-              this.error('TSServer errored with error.', err)
-              this.error(`TSServer log file: ${this.tsServerLogFile || ''}`)
-              window.showMessage(`TSServer errored with error. ${err.message}`, 'error')
-              this.serviceExited(false)
-            })
-            handle.onExit((code: any) => {
-              if (code == null) {
-                this.info('TSServer normal exit')
-              } else {
-                this.error(`TSServer exited with code: ${code}`)
-              }
-              this.info(`TSServer log file: ${this.tsServerLogFile || ''}`)
-              this.serviceExited(!this.isRestarting)
-              this.isRestarting = false
-            })
-
-            handle.createReader(
-              msg => {
-                this.dispatchMessage(msg)
-              },
-              error => {
-                this.error('ReaderError', error)
-              }
-            )
-            resolve(handle)
-            this.serviceStarted(resendModels)
-            this._onTsServerStarted.fire(currentVersion.version)
-          }
-        )
-      } catch (e) {
-        reject(e)
-      }
-    })
+    try {
+      let childProcess = fork(currentVersion.tsServerPath, args, options, this.logger)
+      this.state = ServiceStat.Running
+      this.info('Starting TSServer', JSON.stringify(currentVersion, null, 2))
+      const handle = new ForkedTsServerProcess(childProcess)
+      this.tsServerProcess = handle
+      this.lastStart = Date.now()
+      handle.onError((err: Error) => {
+        if (this.token != myToken) return
+        window.showErrorMessage(`TypeScript language server exited with error. Error message is: ${err.message}`)
+        this.error('TSServer errored with error.', err)
+        this.error(`TSServer log file: ${this.tsServerLogFile || ''}`)
+        window.showMessage(`TSServer errored with error. ${err.message}`, 'error')
+        this.serviceExited(false)
+      })
+      handle.onExit((code: any, signal: string) => {
+        handle.dispose()
+        if (this.token != myToken) return
+        if (code == null) {
+          this.info(`TSServer exited. Signal: ${signal}`)
+        } else {
+          this.error(`TSServer exited with code: ${code}. Signal: ${signal}`)
+        }
+        this.info(`TSServer log file: ${this.tsServerLogFile || ''}`)
+        this.serviceExited(!this.isRestarting)
+        this.isRestarting = false
+      })
+      handle.onData(msg => {
+        this.dispatchMessage(msg)
+      })
+      this.serviceStarted(resendModels)
+      this._onReady!.resolve()
+      this._onTsServerStarted.fire(currentVersion.version)
+      return handle
+    } catch (err) {
+      this.state = ServiceStat.StartFailed
+      this.error('Starting TSServer failed with error.', err.stack)
+      return undefined
+    }
   }
 
   public async openTsServerLogFile(): Promise<boolean> {
     const isRoot = process.getuid && process.getuid() == 0
     let echoErr = (msg: string) => {
-      window.showMessage(msg, 'error')
+      window.showErrorMessage(msg)
     }
     if (isRoot) {
       echoErr('Log disabled for root user.')
@@ -408,6 +345,7 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
       preferences: {
         providePrefixAndSuffixTextForRename: true,
         allowRenameOfImportPath: true,
+        includePackageJsonAutoImports: this._configuration.includePackageJsonAutoImports
       },
       watchOptions
     }
@@ -448,12 +386,15 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
 
   private serviceExited(restart: boolean): void {
     this.state = ServiceStat.Stopped
-    this.servicePromise = null
     this.tsServerLogFile = null
     this._callbacks.destroy('Service died.')
     this._callbacks = new CallbackMap<Proto.Response>()
     this._requestQueue = new RequestQueue()
     this._pendingResponses = new Set<number>()
+    if (this.noRestart) {
+      this.noRestart = false
+      return
+    }
     if (restart) {
       const diff = Date.now() - this.lastStart
       this.numberRestarts++
@@ -470,7 +411,7 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
         }
       }
       if (startService) {
-        this.startService(true) // tslint:disable-line
+        this.startService(true)
       }
     }
   }
@@ -482,7 +423,7 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
   public toOpenedFilePath(uri: string, options: { suppressAlertOnFailure?: boolean } = {}): string | undefined {
     if (!this.bufferSyncSupport.ensureHasBuffer(uri)) {
       if (!options.suppressAlertOnFailure) {
-        console.error(`Unexpected resource ${uri}`)
+        this.error(`Unexpected resource ${uri}`)
       }
       return undefined
     }
@@ -490,6 +431,9 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
   }
 
   public toResource(filepath: string): string {
+    if (filepath.includes('zipfile:')) {
+      return filepath.replace(/.*zipfile:/, 'zipfile://');
+    }
     if (this._apiVersion.gte(API.v213)) {
       if (filepath.startsWith(this.inMemoryResourcePrefix + 'untitled:')) {
         let resource = Uri.parse(filepath)
@@ -599,13 +543,14 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
   }
 
   private fatalError(command: string, error: any): void {
-    console.error(`A non-recoverable error occured while executing tsserver command: ${command}`)
-
+    this.error(`A non-recoverable error occured while executing tsserver command: ${command}`)
     if (this.state === ServiceStat.Running) {
       this.info('Killing TS Server by fatal error:', error)
-      this.service().then(service => {
-        service.kill()
-      })
+      let { tsServerProcess } = this
+      if (tsServerProcess) {
+        this.tsServerProcess = undefined
+        tsServerProcess.kill()
+      }
     }
   }
 
@@ -630,7 +575,7 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
   private executeImpl(command: string, args: any, executeInfo: { isAsync: boolean, token?: CancellationToken, expectsResult: false, lowPriority?: boolean }): undefined
   private executeImpl(command: string, args: any, executeInfo: { isAsync: boolean, token?: CancellationToken, expectsResult: boolean, lowPriority?: boolean }): Promise<ServerResponse.Response<Proto.Response>>
   private executeImpl(command: string, args: any, executeInfo: { isAsync: boolean, token?: CancellationToken, expectsResult: boolean, lowPriority?: boolean }): Promise<ServerResponse.Response<Proto.Response>> | undefined {
-    if (this.servicePromise == null) {
+    if (!this.tsServerProcess) {
       return Promise.resolve(undefined)
     }
     this.bufferSyncSupport.beforeCommand(command)
@@ -678,16 +623,15 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
     if (requestItem.expectsResponse && !requestItem.isAsync) {
       this._pendingResponses.add(requestItem.request.seq)
     }
-    this.service().then(childProcess => {
-      try {
-        childProcess.write(serverRequest)
-      } catch (err) {
-        const callback = this.fetchCallback(serverRequest.seq)
-        if (callback) {
-          callback.onError(err)
-        }
+    if (!this.tsServerProcess) return
+    try {
+      this.tsServerProcess.write(serverRequest)
+    } catch (err) {
+      const callback = this.fetchCallback(serverRequest.seq)
+      if (callback) {
+        callback.onError(err)
       }
-    })
+    }
   }
 
   private tryCancelRequest(seq: number, command: string): boolean {
@@ -722,7 +666,6 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
     if (!callback) {
       return undefined
     }
-
     this._pendingResponses.delete(seq)
     return callback
   }
@@ -840,8 +783,9 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
     }
   }
 
-  private async getTsServerArgs(currentVersion: TypeScriptVersion): Promise<string[]> {
+  private getTsServerArgs(currentVersion: TypeScriptVersion): string[] {
     const args: string[] = []
+
     args.push('--allowLocalPluginLoads')
 
     if (this.apiVersion.gte(API.v250)) {
@@ -859,10 +803,10 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
       args.push('--cancellationPipeName', this.cancellationPipeName + '*')
     }
 
+    const logDir = getTempDirectory()
     if (this.apiVersion.gte(API.v222)) {
       const isRoot = process.getuid && process.getuid() == 0
       if (this._configuration.tsServerLogLevel !== TsServerLogLevel.Off && !isRoot) {
-        const logDir = getTempDirectory()
         if (logDir) {
           this.tsServerLogFile = path.join(logDir, `tsserver.log`)
           this.info('TSServer log file :', this.tsServerLogFile)
@@ -881,6 +825,16 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
       }
     }
 
+    if (this._configuration.enableTsServerTracing) {
+      let tsServerTraceDirectory = createTempDirectory(`tsserver-trace-${makeRandomHexString(5)}`)
+      if (tsServerTraceDirectory) {
+        args.push('--traceDirectory', tsServerTraceDirectory)
+        this.info('TSServer trace directory :', tsServerTraceDirectory)
+      } else {
+        this.error('Could not create TSServer trace directory')
+      }
+    }
+
     if (this.apiVersion.gte(API.v230)) {
       const pluginNames = this.pluginManager.plugins.map(x => x.name)
       let pluginPaths = this._configuration.tsServerPluginPaths
@@ -954,11 +908,8 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
 
   public configurePlugin(pluginName: string, configuration: {}): any {
     if (this.apiVersion.gte(API.v314)) {
-      if (!this.servicePromise) return
-      this.servicePromise.then(() => {
-        // tslint:disable-next-line: no-floating-promises
-        this.executeWithoutWaitingForResponse('configurePlugin', { pluginName, configuration })
-      })
+      if (!this.tsServerProcess) return
+      this.executeWithoutWaitingForResponse('configurePlugin', { pluginName, configuration })
     }
   }
 
@@ -1001,3 +952,15 @@ function getQueueingType(
   }
   return lowPriority ? RequestQueueingType.LowPriority : RequestQueueingType.Normal
 }
+
+function getDebugPort(): number | undefined {
+  let debugBrk = process.env[process.env.remoteName ? 'TSS_REMOTE_DEBUG_BRK' : 'TSS_DEBUG_BRK']
+  let value = debugBrk || process.env[process.env.remoteName ? 'TSS_REMOTE_DEBUG_BRK' : 'TSS_DEBUG_BRK']
+  if (value) {
+    const port = parseInt(value)
+    if (!isNaN(port)) {
+      return port
+    }
+  }
+  return undefined
+}
diff --git a/src/server/typescriptServiceClientHost.ts b/src/server/typescriptServiceClientHost.ts
index dea0311..43e591f 100644
--- a/src/server/typescriptServiceClientHost.ts
+++ b/src/server/typescriptServiceClientHost.ts
@@ -2,7 +2,7 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-import { disposeAll, languages, TextDocument, Uri, workspace } from 'coc.nvim'
+import { ConfigurationChangeEvent, disposeAll, languages, TextDocument, Uri, workspace } from 'coc.nvim'
 import { CancellationToken, Diagnostic, DiagnosticRelatedInformation, DiagnosticSeverity, DiagnosticTag, Disposable, Position, Range } from 'vscode-languageserver-protocol'
 import { flatten } from '../utils/arrays'
 import { PluginManager } from '../utils/plugins'
@@ -22,6 +22,7 @@ import TypingsStatus, { AtaProgressReporter } from './utils/typingsStatus'
 const styleCheckDiagnostics = [
   6133, // variable is declared but never used
   6138, // property is declared but its value is never read
+  6192, // allImportsAreUnused
   7027, // unreachable code detected
   7028, // unused label
   7029, // fall through case in switch
@@ -37,7 +38,7 @@ export default class TypeScriptServiceClientHost implements Disposable {
   private readonly fileConfigurationManager: FileConfigurationManager
   private reportStyleCheckAsWarnings = true
 
-  constructor(descriptions: LanguageDescription[], pluginManager: PluginManager) {
+  constructor(descriptions: LanguageDescription[], pluginManager: PluginManager, tscPath: string | null) {
     let timer: NodeJS.Timer
     const handleProjectChange = () => {
       if (timer) clearTimeout(timer)
@@ -56,7 +57,7 @@ export default class TypeScriptServiceClientHost implements Disposable {
     packageFileWatcher.onDidChange(handleProjectChange, this, this.disposables)
 
     const allModeIds = this.getAllModeIds(descriptions, pluginManager)
-    this.client = new TypeScriptServiceClient(pluginManager, allModeIds)
+    this.client = new TypeScriptServiceClient(pluginManager, allModeIds, tscPath)
     this.disposables.push(this.client)
     this.client.onDiagnosticsReceived(({ kind, resource, diagnostics }) => {
       this.diagnosticsReceived(kind, resource, diagnostics).catch(e => {
@@ -102,39 +103,43 @@ export default class TypeScriptServiceClientHost implements Disposable {
       )
       this.languagePerId.set(description.id, manager)
     }
-    const languageIds = new Set<string>()
-    for (const plugin of pluginManager.plugins) {
-      if (plugin.configNamespace && plugin.languages.length) {
+    this.client.ensureServiceStarted()
+    this.client.onReady(() => {
+      const languageIds = new Set<string>()
+      for (const plugin of pluginManager.plugins) {
+        if (plugin.configNamespace && plugin.languages.length) {
+          this.registerExtensionLanguageProvider({
+            id: plugin.configNamespace,
+            languageIds: Array.from(plugin.languages),
+            diagnosticSource: 'ts-plugin',
+            diagnosticLanguage: DiagnosticLanguage.TypeScript,
+            diagnosticOwner: 'typescript',
+            standardFileExtensions: [],
+            isExternal: true
+          })
+        } else {
+          for (const language of plugin.languages) {
+            languageIds.add(language)
+          }
+        }
+      }
+
+      if (languageIds.size) {
         this.registerExtensionLanguageProvider({
-          id: plugin.configNamespace,
-          modeIds: Array.from(plugin.languages),
+          id: 'typescript-plugins',
+          languageIds: Array.from(languageIds.values()),
           diagnosticSource: 'ts-plugin',
           diagnosticLanguage: DiagnosticLanguage.TypeScript,
           diagnosticOwner: 'typescript',
+          standardFileExtensions: [],
           isExternal: true
         })
-      } else {
-        for (const language of plugin.languages) {
-          languageIds.add(language)
-        }
       }
-    }
-
-    if (languageIds.size) {
-      this.registerExtensionLanguageProvider({
-        id: 'typescript-plugins',
-        modeIds: Array.from(languageIds.values()),
-        diagnosticSource: 'ts-plugin',
-        diagnosticLanguage: DiagnosticLanguage.TypeScript,
-        diagnosticOwner: 'typescript',
-        isExternal: true
-      })
-    }
-
-    this.client.ensureServiceStarted()
+    })
     this.client.onTsServerStarted(() => {
       this.triggerAllDiagnostics()
     })
+
     workspace.onDidChangeConfiguration(this.configurationChanged, this, this.disposables)
     this.configurationChanged()
   }
@@ -155,10 +160,6 @@ export default class TypeScriptServiceClientHost implements Disposable {
     this.ataProgressReporter.dispose()
   }
 
-  public reset(): void {
-    this.fileConfigurationManager.reset()
-  }
-
   public get serviceClient(): TypeScriptServiceClient {
     return this.client
   }
@@ -174,17 +175,20 @@ export default class TypeScriptServiceClientHost implements Disposable {
     return this.languagePerId.get(languageId)
   }
 
-  private configurationChanged(): void {
-    const config = workspace.getConfiguration('tsserver')
-    this.reportStyleCheckAsWarnings = config.get('reportStyleChecksAsWarnings', true)
+  private configurationChanged(e?: ConfigurationChangeEvent): void {
+    if (!e || e.affectsConfiguration('tsserver')) {
+      const config = workspace.getConfiguration('tsserver')
+      this.reportStyleCheckAsWarnings = config.get('reportStyleChecksAsWarnings', true)
+    }
   }
 
   public async findLanguage(uri: string): Promise<LanguageProvider> {
     try {
       let doc = this.client.getDocument(uri)
-      if (!doc) return undefined
       let languages = Array.from(this.languagePerId.values())
-      return languages.find(language => language.handles(uri, doc.textDocument))
+      // possible not opened
+      if (doc) return languages.find(language => language.handles(uri, doc.textDocument))
+      return languages.find(language => language.handlesUri(Uri.parse(uri)))
     } catch {
       return undefined
     }
@@ -289,7 +293,7 @@ export default class TypeScriptServiceClientHost implements Disposable {
 
   private getAllModeIds(descriptions: LanguageDescription[], pluginManager: PluginManager): string[] {
     const allModeIds = flatten([
-      ...descriptions.map(x => x.modeIds),
+      ...descriptions.map(x => x.languageIds),
       ...pluginManager.plugins.map(x => x.languages)
     ])
     return allModeIds
diff --git a/src/server/utils/api.ts b/src/server/utils/api.ts
index 6f6008a..0dce70a 100644
--- a/src/server/utils/api.ts
+++ b/src/server/utils/api.ts
@@ -35,6 +35,7 @@ export default class API {
   public static readonly v340 = API.fromSimpleString('3.4.0')
   public static readonly v345 = API.fromSimpleString('3.4.5')
   public static readonly v350 = API.fromSimpleString('3.5.0')
+  public static readonly v370 = API.fromSimpleString('3.7.0')
   public static readonly v380 = API.fromSimpleString('3.8.0')
   public static readonly v381 = API.fromSimpleString('3.8.1')
   public static readonly v390 = API.fromSimpleString('3.9.0')
@@ -42,6 +43,7 @@ export default class API {
   public static readonly v401 = API.fromSimpleString('4.0.1')
   public static readonly v420 = API.fromSimpleString('4.2.0')
   public static readonly v430 = API.fromSimpleString('4.3.0')
+  public static readonly v440 = API.fromSimpleString('4.4.0')
 
   public static fromVersionString(versionString: string): API {
     let version = semver.valid(versionString)
diff --git a/src/server/utils/completionItem.ts b/src/server/utils/completionItem.ts
index 1ccfec2..4c2f920 100644
--- a/src/server/utils/completionItem.ts
+++ b/src/server/utils/completionItem.ts
@@ -59,6 +59,9 @@ export function convertCompletionEntry(
     insertText = label
     insertTextFormat = InsertTextFormat.Snippet
   }
+  if (tsEntry.isSnippet) {
+    insertTextFormat = InsertTextFormat.Snippet
+  }
 
   let textEdit: TextEdit | null = null
   if (tsEntry.replacementSpan) {
@@ -73,7 +76,7 @@ export function convertCompletionEntry(
   if (tsEntry.kindModifiers) {
     const kindModifiers = new Set(tsEntry.kindModifiers.split(/,|\s+/g))
     if (kindModifiers.has(PConst.KindModifiers.optional)) {
-      insertText = label
+      insertText = insertText ?? label
       label += '?'
     }
 
@@ -136,6 +139,7 @@ function convertKind(kind: string): CompletionItemKind {
     case PConst.Kind.memberSetAccessor:
       return CompletionItemKind.Field
     case PConst.Kind.function:
+    case PConst.Kind.localFunction:
       return CompletionItemKind.Function
     case PConst.Kind.method:
     case PConst.Kind.constructSignature:
diff --git a/src/server/utils/configuration.ts b/src/server/utils/configuration.ts
index 7ee4c21..c320899 100644
--- a/src/server/utils/configuration.ts
+++ b/src/server/utils/configuration.ts
@@ -40,14 +40,25 @@ export namespace TsServerLogLevel {
 
 export class TypeScriptServiceConfiguration {
   private _configuration: WorkspaceConfiguration
+  private _includePackageJsonAutoImports: 'auto' | 'on' | 'off'
   private constructor() {
     this._configuration = workspace.getConfiguration('tsserver')
+    this._includePackageJsonAutoImports = workspace.getConfiguration('typescript').get<'auto' | 'on' | 'off'>('preferences.includePackageJsonAutoImports')
 
     workspace.onDidChangeConfiguration(() => {
       this._configuration = workspace.getConfiguration('tsserver')
+      this._includePackageJsonAutoImports = workspace.getConfiguration('typescript').get<'auto' | 'on' | 'off'>('preferences.includePackageJsonAutoImports')
     })
   }
 
+  public get enableTsServerTracing(): boolean {
+    return this._configuration.get<boolean>('enableTracing', false)
+  }
+
+  public get includePackageJsonAutoImports(): 'auto' | 'on' | 'off' {
+    return this._includePackageJsonAutoImports
+  }
+
   public get locale(): string | null {
     return this._configuration.get<string | null>('locale', null)
   }
@@ -97,10 +108,6 @@ export class TypeScriptServiceConfiguration {
     return this._configuration.get<number>('maxTsServerMemory', 0)
   }
 
-  public get debugPort(): number | null {
-    return this._configuration.get<number>('debugPort', parseInt(process.env['TSS_DEBUG'], 10))
-  }
-
   public get npmLocation(): string | null {
     let path = this._configuration.get<string>('npm', '')
     if (path) return workspace.expand(path)
diff --git a/src/server/utils/languageDescription.ts b/src/server/utils/languageDescription.ts
index 75cd1f9..dfa6c7e 100644
--- a/src/server/utils/languageDescription.ts
+++ b/src/server/utils/languageDescription.ts
@@ -3,16 +3,18 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 import * as languageModeIds from './languageModeIds'
+import path from 'path'
+import { Uri } from 'coc.nvim'
 
 export interface LanguageDescription {
   readonly id: string
   readonly diagnosticSource: string
   readonly diagnosticLanguage: DiagnosticLanguage
-  readonly modeIds: string[]
-  readonly configFile?: string
+  readonly languageIds: string[]
   readonly isExternal?: boolean
   readonly diagnosticOwner: string
   readonly configFilePattern?: RegExp
+  readonly standardFileExtensions: ReadonlyArray<string>,
 }
 
 export const enum DiagnosticLanguage {
@@ -25,19 +27,45 @@ export const standardLanguageDescriptions: LanguageDescription[] = [
     id: 'typescript',
     diagnosticSource: 'ts',
     diagnosticOwner: 'typescript',
-    modeIds: [languageModeIds.typescript, languageModeIds.typescriptreact,
-    languageModeIds.typescripttsx, languageModeIds.typescriptjsx],
     diagnosticLanguage: DiagnosticLanguage.TypeScript,
-    configFile: 'tsconfig.json',
-    configFilePattern: /^tsconfig(\..*)?\.json$/gi
+    languageIds: [languageModeIds.typescript, languageModeIds.typescriptreact, languageModeIds.typescripttsx, languageModeIds.typescriptjsx],
+    configFilePattern: /^tsconfig(\..*)?\.json$/gi,
+    standardFileExtensions: [
+      'ts',
+      'tsx',
+      'cts',
+      'mts'
+    ]
   },
   {
     id: 'javascript',
     diagnosticSource: 'ts',
     diagnosticOwner: 'typescript',
-    modeIds: [languageModeIds.javascript, languageModeIds.javascriptreact, languageModeIds.javascriptjsx],
-    diagnosticLanguage: DiagnosticLanguage.JavaScript,
-    configFile: 'jsconfig.json',
-    configFilePattern: /^jsconfig(\..*)?\.json$/gi
+    languageIds: [languageModeIds.javascript, languageModeIds.javascriptreact, languageModeIds.javascriptjsx], diagnosticLanguage: DiagnosticLanguage.JavaScript,
+    configFilePattern: /^jsconfig(\..*)?\.json$/gi,
+    standardFileExtensions: [
+      'js',
+      'jsx',
+      'cjs',
+      'mjs',
+      'es6',
+      'pac',
+    ]
   }
 ]
+
+export function isTsConfigFileName(fileName: string): boolean {
+  return /^tsconfig\.(.+\.)?json$/i.test(path.basename(fileName))
+}
+
+export function isJsConfigOrTsConfigFileName(fileName: string): boolean {
+  return /^[jt]sconfig\.(.+\.)?json$/i.test(path.basename(fileName))
+}
+
+export function doesResourceLookLikeATypeScriptFile(resource: Uri): boolean {
+  return /\.(tsx?|mts|cts)$/i.test(resource.fsPath)
+}
+
+export function doesResourceLookLikeAJavaScriptFile(resource: Uri): boolean {
+  return /\.(jsx?|mjs|cjs)$/i.test(resource.fsPath)
+}
diff --git a/src/server/utils/logger.ts b/src/server/utils/logger.ts
index 4169cec..0d30ca5 100644
--- a/src/server/utils/logger.ts
+++ b/src/server/utils/logger.ts
@@ -51,12 +51,24 @@ export default class Logger {
     this.logLevel('Error', message, data)
   }
 
+  private now(): string {
+    const now = new Date()
+    return padLeft(now.getUTCHours() + '', 2, '0')
+      + ':' + padLeft(now.getMinutes() + '', 2, '0')
+      + ':' + padLeft(now.getUTCSeconds() + '', 2, '0') + '.' + now.getMilliseconds()
+  }
+
   public logLevel(level: string, message: string, data?: any): void {
     this.output.appendLine(
-      `[${level}  - ${new Date().toLocaleTimeString()}] ${message}`
+      `[${level} - ${this.now()}] ${message}`
     )
     if (data) {
       this.output.appendLine(this.data2String(data))
     }
   }
 }
+
+
+function padLeft(s: string, n: number, pad = ' ') {
+  return pad.repeat(Math.max(0, n - s.length)) + s
+}
diff --git a/src/server/utils/previewer.ts b/src/server/utils/previewer.ts
index ccae4f5..9ea0351 100644
--- a/src/server/utils/previewer.ts
+++ b/src/server/utils/previewer.ts
@@ -94,20 +94,15 @@ function getTagDocumentation(tag: Proto.JSDocTagInfo): string | undefined {
   return label + (text.match(/\r\n|\n/g) ? '  \n' + text : ` — ${text}`)
 }
 
-export function plain(parts: Proto.SymbolDisplayPart[]): string {
-  if (!parts || !parts.length) return ''
-  return parts.map(part => part.text).join('')
-}
-
 export function tagsMarkdownPreview(tags: Proto.JSDocTagInfo[]): string {
   return (tags || []).map(getTagDocumentation).join('  \n\n')
 }
 
 export function markdownDocumentation(
-  documentation: Proto.SymbolDisplayPart[],
+  documentation: Proto.SymbolDisplayPart[] | string,
   tags: Proto.JSDocTagInfo[]
 ): MarkupContent {
-  let out = plain(documentation)
+  let out = plainWithLinks(documentation)
   const tagsPreview = tagsMarkdownPreview(tags)
   if (tagsPreview) {
     out = out + ('\n\n' + tagsPreview)
@@ -118,6 +113,12 @@ export function markdownDocumentation(
   }
 }
 
+export function plainWithLinks(
+  parts: readonly Proto.SymbolDisplayPart[] | string,
+): string {
+  return processInlineTags(convertLinkTags(parts))
+}
+
 /**
  * Convert `@link` inline tags to markdown links
  */
diff --git a/src/server/utils/process.ts b/src/server/utils/process.ts
index 3b8c6fd..8580943 100644
--- a/src/server/utils/process.ts
+++ b/src/server/utils/process.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 import cp from 'child_process'
-import net from 'net'
 import os from 'os'
 import path from 'path'
 import fs from 'fs'
@@ -24,47 +23,40 @@ export function makeRandomHexString(length: number): string {
   return result
 }
 
-export function getTempDirectory(): string {
+export function getTempDirectory(): string | undefined {
   let dir = path.join(os.tmpdir(), `coc.nvim-${process.pid}`)
-  if (!fs.existsSync(dir)) {
-    fs.mkdirSync(dir)
+  try {
+    if (!fs.existsSync(dir)) {
+      fs.mkdirSync(dir)
+    }
+  } catch (e) {
+    return undefined
   }
   return dir
 }
 
-function generatePipeName(): string {
-  return getPipeName(makeRandomHexString(40))
-}
-
-function getPipeName(name: string): string {
-  const fullName = 'coc-tsc-' + name
-  if (process.platform === 'win32') {
-    return '\\\\.\\pipe\\' + fullName + '-sock'
-  }
-  const tmpdir = getTempDirectory()
-  // Mac/Unix: use socket file
-  return path.join(tmpdir, fullName + '.sock')
-}
-
-export function getTempFile(name: string): string {
+export function getTempFile(name: string): string | undefined {
   const fullName = 'coc-nvim-' + name
-  return path.join(getTempDirectory(), fullName + '.sock')
+  let dir = getTempDirectory()
+  if (!dir) return undefined
+  return path.join(dir, fullName + '.sock')
 }
 
-function generatePatchedEnv(
-  env: any,
-  stdInPipeName: string,
-  stdOutPipeName: string,
-  stdErrPipeName: string
-): any {
+export function createTempDirectory(name: string) {
+  let dir = getTempDirectory()
+  if (!dir) return undefined
+  let res = path.join(dir, name)
+  try {
+    fs.mkdirSync(res)
+  } catch (e) {
+    return undefined
+  }
+  return res
+}
+
+function generatePatchedEnv(env: any, modulePath: string): any {
   const newEnv = Object.assign({}, env)
-
-  // Set the two unique pipe names and the electron flag as process env
-  newEnv['STDIN_PIPE_NAME'] = stdInPipeName // tslint:disable-line
-  newEnv['STDOUT_PIPE_NAME'] = stdOutPipeName // tslint:disable-line
-  newEnv['STDERR_PIPE_NAME'] = stdErrPipeName // tslint:disable-line
-  newEnv['TSS_LOG'] = `-level verbose -file ${path.join(os.tmpdir(), 'coc-nvim-tsc.log')}` // tslint:disable-line
-
+  newEnv['NODE_PATH'] = path.join(modulePath, '..', '..', '..')
   // Ensure we always have a PATH set
   newEnv['PATH'] = newEnv['PATH'] || process.env.PATH // tslint:disable-line
   return newEnv
@@ -75,88 +67,14 @@ export function fork(
   args: string[],
   options: IForkOptions,
   logger: Logger,
-  callback: (error: any, cp: cp.ChildProcess | null) => void
-): void {
-  let callbackCalled = false
-  const resolve = (result: cp.ChildProcess) => {
-    if (callbackCalled) {
-      return
-    }
-    callbackCalled = true
-    callback(null, result)
-  }
-  const reject = (err: any) => {
-    if (callbackCalled) {
-      return
-    }
-    callbackCalled = true
-    callback(err, null)
-  }
-
-  // Generate three unique pipe names
-  const stdInPipeName = generatePipeName()
-  const stdOutPipeName = generatePipeName()
-  const stdErrPipeName = generatePipeName()
-
-  const newEnv = generatePatchedEnv(
-    process.env,
-    stdInPipeName,
-    stdOutPipeName,
-    stdErrPipeName
-  )
-  newEnv['NODE_PATH'] = path.join(modulePath, '..', '..', '..') // tslint:disable-line
-
-  let childProcess: cp.ChildProcess
-  // Begin listening to stderr pipe
-  let stdErrServer = net.createServer(stdErrStream => {
-    // From now on the childProcess.stderr is available for reading
-    childProcess.stderr = stdErrStream
-  })
-  stdErrServer.listen(stdErrPipeName)
-
-  // Begin listening to stdout pipe
-  let stdOutServer = net.createServer(stdOutStream => {
-    // The child process will write exactly one chunk with content `ready` when it has installed a listener to the stdin pipe
-
-    stdOutStream.once('data', (_chunk: Buffer) => {
-      // The child process is sending me the `ready` chunk, time to connect to the stdin pipe
-      childProcess.stdin = net.connect(stdInPipeName) as any
-
-      // From now on the childProcess.stdout is available for reading
-      childProcess.stdout = stdOutStream
-
-      resolve(childProcess)
-    })
-  })
-  stdOutServer.listen(stdOutPipeName)
-
-  let serverClosed = false
-  const closeServer = () => {
-    if (serverClosed) {
-      return
-    }
-    serverClosed = true
-    stdOutServer.close()
-    stdErrServer.close()
-  }
-
+): cp.ChildProcess {
   // Create the process
-  logger.info('Forking TSServer', `PATH: ${newEnv['PATH']} `)
-
-  const bootstrapperPath = path.resolve(__dirname, '../bin/tsserverForkStart')
-  childProcess = cp.fork(bootstrapperPath, [modulePath].concat(args), {
+  logger.info('Forking TSServer', `PATH: ${modulePath} `)
+  let childProcess = cp.fork(modulePath, args, {
     silent: true,
-    env: newEnv,
+    cwd: undefined,
+    env: generatePatchedEnv(process.env, modulePath),
     execArgv: options.execArgv
   })
-
-  childProcess.once('error', (err: Error) => {
-    closeServer()
-    reject(err)
-  })
-
-  childProcess.once('exit', (err: Error) => {
-    closeServer()
-    reject(err)
-  })
+  return childProcess
 }
diff --git a/src/server/utils/typeConverters.ts b/src/server/utils/typeConverters.ts
index ace1aa1..6a07813 100644
--- a/src/server/utils/typeConverters.ts
+++ b/src/server/utils/typeConverters.ts
@@ -6,6 +6,7 @@
  * Helpers for converting FROM LanguageServer types language-server ts types
  */
 import * as language from 'vscode-languageserver-protocol'
+import { TextDocumentEdit } from 'vscode-languageserver-protocol'
 import Proto from '../protocol'
 import * as PConst from '../protocol.const'
 import { ITypeScriptServiceClient } from '../typescriptService'
@@ -98,14 +99,20 @@ export namespace WorkspaceEdit {
     client: ITypeScriptServiceClient,
     edits: Iterable<Proto.FileCodeEdits>
   ): language.WorkspaceEdit {
-    let changes = {}
+    let documentChanges: TextDocumentEdit[] = []
     for (const edit of edits) {
       let uri = client.toResource(edit.fileName)
-      changes[uri] = edit.textChanges.map(change => {
-        return TextEdit.fromCodeEdit(change)
+      documentChanges.push({
+        textDocument: {
+          uri,
+          version: null
+        },
+        edits: edit.textChanges.map(change => {
+          return TextEdit.fromCodeEdit(change)
+        })
       })
     }
-    return { changes }
+    return { documentChanges }
   }
 }
 
diff --git a/src/server/utils/typingsStatus.ts b/src/server/utils/typingsStatus.ts
index 8adf8b9..d1608a5 100644
--- a/src/server/utils/typingsStatus.ts
+++ b/src/server/utils/typingsStatus.ts
@@ -1,4 +1,4 @@
-import { StatusBarItem, window } from 'coc.nvim'
+import { StatusBarItem, workspace, window } from 'coc.nvim'
 /*---------------------------------------------------------------------------------------------
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
@@ -110,10 +110,19 @@ export class AtaProgressReporter {
     }
   }
 
-  private onTypesInstallerInitializationFailed() { // tslint:disable-line
+  private async onTypesInstallerInitializationFailed() { // tslint:disable-line
     this.statusItem.hide()
     if (!this._invalid) {
-      window.showMessage('Could not install typings files for JavaScript language features. Please ensure that NPM is installed', 'error')
+      const config = workspace.getConfiguration('typescript')
+      if (config.get<boolean>('check.npmIsInstalled', true)) {
+        const dontShowAgain = "Don't Show Again"
+        const selected = await window.showWarningMessage(
+          "Could not install typings files for JavaScript language features. Please ensure that NPM is installed or configure 'typescript.npm' in your user settings. visit https://go.microsoft.com/fwlink/?linkid=847635  to learn more.",
+          dontShowAgain)
+        if (selected === dontShowAgain) {
+          config.update('check.npmIsInstalled', false, true)
+        }
+      }
     }
     this._invalid = true
   }
diff --git a/src/server/utils/versionProvider.ts b/src/server/utils/versionProvider.ts
index 02e4a21..b488bef 100644
--- a/src/server/utils/versionProvider.ts
+++ b/src/server/utils/versionProvider.ts
@@ -106,6 +106,15 @@ export class TypeScriptVersionProvider {
     return undefined
   }
 
+  public getVersionFromTscPath(tscPath: string): TypeScriptVersion | undefined {
+    if (!tscPath || !fs.existsSync(tscPath)) return undefined
+    let libFolder = path.resolve(tscPath, '../../lib')
+    if (fs.existsSync(libFolder)) {
+      let version = new TypeScriptVersion(libFolder)
+      if (version.isValid) return version
+    }
+  }
+
   public getLocalVersion(): TypeScriptVersion | undefined {
     let folders = workspace.workspaceFolders.map(f => Uri.parse(f.uri).fsPath)
     for (let p of folders) {
diff --git a/src/server/utils/wireProtocol.ts b/src/server/utils/wireProtocol.ts
index f71b11f..2b24126 100644
--- a/src/server/utils/wireProtocol.ts
+++ b/src/server/utils/wireProtocol.ts
@@ -2,7 +2,9 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
+import { disposeAll } from 'coc.nvim'
 import stream from 'stream'
+import { Disposable, Emitter } from 'vscode-languageserver-protocol'
 
 const DefaultSize = 8192
 const ContentLength = 'Content-Length: '
@@ -99,18 +101,30 @@ export interface ICallback<T> {
   (data: T): void // tslint:disable-line
 }
 
-export class Reader<T> {
+export class Reader<T> implements Disposable {
   private readonly buffer: ProtocolBuffer = new ProtocolBuffer()
   private nextMessageLength = -1
+  private disposables: Disposable[] = []
 
-  public constructor(
-    private readonly readable: stream.Readable,
-    private readonly callback: ICallback<T>,
-    private readonly onError: (error: any) => void
-  ) {
-    this.readable.on('data', (data: Buffer) => {
+  private readonly _onError = new Emitter<Error>()
+  public readonly onError = this._onError.event
+
+  private readonly _onData = new Emitter<T>()
+  public readonly onData = this._onData.event
+
+  public constructor(readable: stream.Readable) {
+    const onData = (data: Buffer) => {
       this.onLengthData(data)
+    }
+    readable.on('data', onData)
+
+    this.disposables.push({
+      dispose: () => {
+        readable.off('data', onData)
+      }
     })
+    this.disposables.push(this._onError)
+    this.disposables.push(this._onData)
   }
 
   private onLengthData(data: Buffer): void {
@@ -129,10 +143,14 @@ export class Reader<T> {
         }
         this.nextMessageLength = -1
         const json = JSON.parse(msg)
-        this.callback(json)
+        this._onData.fire(json)
       }
     } catch (e) {
-      this.onError(e)
+      this._onError.fire(e)
     }
   }
+
+  public dispose(): void {
+    disposeAll(this.disposables)
+  }
 }
diff --git a/src/utils/fileSchemess.ts b/src/utils/fileSchemes.ts
similarity index 100%
rename from src/utils/fileSchemess.ts
rename to src/utils/fileSchemes.ts
diff --git a/tsconfig.json b/tsconfig.json
index 6464e65..40d3beb 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -8,6 +8,7 @@
     "allowUnreachableCode": true,
     "allowUnusedLabels": true,
     "forceConsistentCasingInFileNames": true,
+    "noEmit": true,
     "noImplicitAny": false,
     "noImplicitReturns": false,
     "noUnusedLocals": false,
diff --git a/yarn.lock b/yarn.lock
index a598ef9..75f5677 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,35 +2,153 @@
 # yarn lockfile v1
 
 
-"@types/node@^10.12.0":
-  version "10.17.44"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.17.44.tgz#3945e6b702cb6403f22b779c8ea9e5c3f44ead40"
-  integrity sha512-vHPAyBX1ffLcy4fQHmDyIUMUb42gHZjPHU66nhvbMzAWJqHnySGZ6STwN3rwrnSd1FHB0DI/RWgGELgKSYRDmw==
+"@types/node@^12.12.12":
+  version "12.20.41"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-12.20.41.tgz#81d7734c5257da9f04354bd9084a6ebbdd5198a5"
+  integrity sha512-f6xOqucbDirG7LOzedpvzjP3UTmHttRou3Mosx3vL9wr9AIQGhcPgVnqa8ihpZYnxyM1rxeNCvTyukPKZtq10Q==
 
-coc.nvim@^0.0.81-next.6:
-  version "0.0.81-next.6"
-  resolved "https://registry.yarnpkg.com/coc.nvim/-/coc.nvim-0.0.81-next.6.tgz#c3ee7079a66702ebb3b06d4c2bf333d9306ec561"
-  integrity sha512-VT+DhygyTIzu9IRrwCUljMzfNfh8TeXqqrvFsBE0E8cUwERgCAIvRbBMEDfqaaI+XFgyuwNRwbX5kEvfjG/u3g==
+coc.nvim@^0.0.81-next.25:
+  version "0.0.81-next.25"
+  resolved "https://registry.yarnpkg.com/coc.nvim/-/coc.nvim-0.0.81-next.25.tgz#8f84b7c71b742e111d330fb553b0df604d4929ec"
+  integrity sha512-c0OOZQSjgKLGNhIpKzlxkPiPmMCmYHSVcCDNA26BqFX8X0iWt3xXqwbxKiE54zfIsz0wFqL59iBVGUSBaqHGpA==
 
-esbuild@^0.8.29:
-  version "0.8.29"
-  resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.8.29.tgz#cc20fb752e0905a3546d68ae1be58f9b97044c39"
-  integrity sha512-UDsEoeXuctVgG2hEts1Hwq2jYDGqV7nksEHEZaiCy2v+lXF5ButX4ErPAJAFi5ZNKKW+6Pom93pArV7hki6HnQ==
+esbuild-android-arm64@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-android-arm64/-/esbuild-android-arm64-0.14.11.tgz#b8b34e35a5b43880664ac7a3fbc70243d7ed894f"
+  integrity sha512-6iHjgvMnC/SzDH8TefL+/3lgCjYWwAd1LixYfmz/TBPbDQlxcuSkX0yiQgcJB9k+ibZ54yjVXziIwGdlc+6WNw==
+
+esbuild-darwin-64@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-darwin-64/-/esbuild-darwin-64-0.14.11.tgz#ba805de98c0412e50fcd0636451797da157b0625"
+  integrity sha512-olq84ikh6TiBcrs3FnM4eR5VPPlcJcdW8BnUz/lNoEWYifYQ+Po5DuYV1oz1CTFMw4k6bQIZl8T3yxL+ZT2uvQ==
+
+esbuild-darwin-arm64@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-darwin-arm64/-/esbuild-darwin-arm64-0.14.11.tgz#4d3573e448af76ce33e16231f3d9f878542d6fe8"
+  integrity sha512-Jj0ieWLREPBYr/TZJrb2GFH8PVzDqiQWavo1pOFFShrcmHWDBDrlDxPzEZ67NF/Un3t6sNNmeI1TUS/fe1xARg==
+
+esbuild-freebsd-64@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-freebsd-64/-/esbuild-freebsd-64-0.14.11.tgz#9294e6ab359ec93590ab097b0f2017de7c78ab4d"
+  integrity sha512-C5sT3/XIztxxz/zwDjPRHyzj/NJFOnakAanXuyfLDwhwupKPd76/PPHHyJx6Po6NI6PomgVp/zi6GRB8PfrOTA==
+
+esbuild-freebsd-arm64@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-freebsd-arm64/-/esbuild-freebsd-arm64-0.14.11.tgz#ae3e0b09173350b66cf8321583c9a1c1fcb8bb55"
+  integrity sha512-y3Llu4wbs0bk4cwjsdAtVOesXb6JkdfZDLKMt+v1U3tOEPBdSu6w8796VTksJgPfqvpX22JmPLClls0h5p+L9w==
+
+esbuild-linux-32@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-32/-/esbuild-linux-32-0.14.11.tgz#ddadbc7038aa5a6b1675bb1503cf79a0cbf1229a"
+  integrity sha512-Cg3nVsxArjyLke9EuwictFF3Sva+UlDTwHIuIyx8qpxRYAOUTmxr2LzYrhHyTcGOleLGXUXYsnUVwKqnKAgkcg==
+
+esbuild-linux-64@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-64/-/esbuild-linux-64-0.14.11.tgz#d698e3ce3a231ddfeec6b5df8c546ae8883fcd88"
+  integrity sha512-oeR6dIrrojr8DKVrxtH3xl4eencmjsgI6kPkDCRIIFwv4p+K7ySviM85K66BN01oLjzthpUMvBVfWSJkBLeRbg==
+
+esbuild-linux-arm64@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-arm64/-/esbuild-linux-arm64-0.14.11.tgz#85faea9fa99ad355b5e3b283197a4dfd0a110fe7"
+  integrity sha512-+e6ZCgTFQYZlmg2OqLkg1jHLYtkNDksxWDBWNtI4XG4WxuOCUErLqfEt9qWjvzK3XBcCzHImrajkUjO+rRkbMg==
+
+esbuild-linux-arm@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-arm/-/esbuild-linux-arm-0.14.11.tgz#74cbcf0b8a22c8401bcbcd6ebd4cbf2baca8b7b4"
+  integrity sha512-vcwskfD9g0tojux/ZaTJptJQU3a7YgTYsptK1y6LQ/rJmw7U5QJvboNawqM98Ca3ToYEucfCRGbl66OTNtp6KQ==
+
+esbuild-linux-mips64le@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-mips64le/-/esbuild-linux-mips64le-0.14.11.tgz#490429211a3233f5cbbd8575b7758b897e42979a"
+  integrity sha512-Rrs99L+p54vepmXIb87xTG6ukrQv+CzrM8eoeR+r/OFL2Rg8RlyEtCeshXJ2+Q66MXZOgPJaokXJZb9snq28bw==
+
+esbuild-linux-ppc64le@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-ppc64le/-/esbuild-linux-ppc64le-0.14.11.tgz#fc79d60710213b5b98345f5b138d48245616827a"
+  integrity sha512-JyzziGAI0D30Vyzt0HDihp4s1IUtJ3ssV2zx9O/c+U/dhUHVP2TmlYjzCfCr2Q6mwXTeloDcLS4qkyvJtYptdQ==
+
+esbuild-linux-s390x@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-s390x/-/esbuild-linux-s390x-0.14.11.tgz#ca4b93556bbba6cc95b0644f2ee93c982165ba07"
+  integrity sha512-DoThrkzunZ1nfRGoDN6REwmo8ZZWHd2ztniPVIR5RMw/Il9wiWEYBahb8jnMzQaSOxBsGp0PbyJeVLTUatnlcw==
+
+esbuild-netbsd-64@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-netbsd-64/-/esbuild-netbsd-64-0.14.11.tgz#edb340bc6653c88804cac2253e21b74258fce165"
+  integrity sha512-12luoRQz+6eihKYh1zjrw0CBa2aw3twIiHV/FAfjh2NEBDgJQOY4WCEUEN+Rgon7xmLh4XUxCQjnwrvf8zhACw==
+
+esbuild-openbsd-64@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-openbsd-64/-/esbuild-openbsd-64-0.14.11.tgz#caeff5f946f79a60ce7bcf88871ca4c71d3476e8"
+  integrity sha512-l18TZDjmvwW6cDeR4fmizNoxndyDHamGOOAenwI4SOJbzlJmwfr0jUgjbaXCUuYVOA964siw+Ix+A+bhALWg8Q==
+
+esbuild-sunos-64@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-sunos-64/-/esbuild-sunos-64-0.14.11.tgz#90ce7e1749c2958a53509b4bae7b8f7d98f276d6"
+  integrity sha512-bmYzDtwASBB8c+0/HVOAiE9diR7+8zLm/i3kEojUH2z0aIs6x/S4KiTuT5/0VKJ4zk69kXel1cNWlHBMkmavQg==
+
+esbuild-windows-32@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-windows-32/-/esbuild-windows-32-0.14.11.tgz#d067f4ce15b29efba6336e6a23597120fafe49ec"
+  integrity sha512-J1Ys5hMid8QgdY00OBvIolXgCQn1ARhYtxPnG6ESWNTty3ashtc4+As5nTrsErnv8ZGUcWZe4WzTP/DmEVX1UQ==
+
+esbuild-windows-64@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-windows-64/-/esbuild-windows-64-0.14.11.tgz#13e86dd37a6cd61a5276fa2d271342d0f74da864"
+  integrity sha512-h9FmMskMuGeN/9G9+LlHPAoiQk9jlKDUn9yA0MpiGzwLa82E7r1b1u+h2a+InprbSnSLxDq/7p5YGtYVO85Mlg==
+
+esbuild-windows-arm64@0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild-windows-arm64/-/esbuild-windows-arm64-0.14.11.tgz#e8edfdf1d712085e6dc3fba18a0c225aaae32b75"
+  integrity sha512-dZp7Krv13KpwKklt9/1vBFBMqxEQIO6ri7Azf8C+ob4zOegpJmha2XY9VVWP/OyQ0OWk6cEeIzMJwInRZrzBUQ==
+
+esbuild@^0.14.11:
+  version "0.14.11"
+  resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.14.11.tgz#ac4acb78907874832afb704c3afe58ad37715c27"
+  integrity sha512-xZvPtVj6yecnDeFb3KjjCM6i7B5TCAQZT77kkW/CpXTMnd6VLnRPKrUB1XHI1pSq6a4Zcy3BGueQ8VljqjDGCg==
+  optionalDependencies:
+    esbuild-android-arm64 "0.14.11"
+    esbuild-darwin-64 "0.14.11"
+    esbuild-darwin-arm64 "0.14.11"
+    esbuild-freebsd-64 "0.14.11"
+    esbuild-freebsd-arm64 "0.14.11"
+    esbuild-linux-32 "0.14.11"
+    esbuild-linux-64 "0.14.11"
+    esbuild-linux-arm "0.14.11"
+    esbuild-linux-arm64 "0.14.11"
+    esbuild-linux-mips64le "0.14.11"
+    esbuild-linux-ppc64le "0.14.11"
+    esbuild-linux-s390x "0.14.11"
+    esbuild-netbsd-64 "0.14.11"
+    esbuild-openbsd-64 "0.14.11"
+    esbuild-sunos-64 "0.14.11"
+    esbuild-windows-32 "0.14.11"
+    esbuild-windows-64 "0.14.11"
+    esbuild-windows-arm64 "0.14.11"
 
 isexe@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
   integrity sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=
 
-semver@^7.3.2:
-  version "7.3.2"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.2.tgz#604962b052b81ed0786aae84389ffba70ffd3938"
-  integrity sha512-OrOb32TeeambH6UrhtShmF7CRDqhL6/5XpPNp2DuRH6+9QLw/orhp72j87v8Qa1ScDkvrrBNpZcDejAirJmfXQ==
+lru-cache@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-6.0.0.tgz#6d6fe6570ebd96aaf90fcad1dafa3b2566db3a94"
+  integrity sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==
+  dependencies:
+    yallist "^4.0.0"
 
-typescript@^4.3.5:
-  version "4.3.5"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.5.tgz#4d1c37cc16e893973c45a06886b7113234f119f4"
-  integrity sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==
+semver@^7.3.5:
+  version "7.3.5"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.5.tgz#0b621c879348d8998e4b0e4be94b3f12e6018ef7"
+  integrity sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==
+  dependencies:
+    lru-cache "^6.0.0"
+
+typescript@^4.7.2:
+  version "4.7.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.7.2.tgz#1f9aa2ceb9af87cca227813b4310fff0b51593c4"
+  integrity sha512-Mamb1iX2FDUpcTRzltPxgWMKy3fhg0TN378ylbktPGPK/99KbDtMQ4W1hwgsbPAsG3a0xKa1vmw4VKZQbkvz5A==
 
 vscode-jsonrpc@6.0.0:
   version "6.0.0"
@@ -56,3 +174,8 @@ which@^2.0.2:
   integrity sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==
   dependencies:
     isexe "^2.0.0"
+
+yallist@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-4.0.0.tgz#9bb92790d9c0effec63be73519e11a35019a3a72"
+  integrity sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==