typescript-language-server · rchl · Aug 5, 2025 · Aug 5, 2025 · Aug 5, 2025
diff --git a/docs/configuration.md b/docs/configuration.md
@@ -54,6 +54,8 @@ Specifies preferences for the internal `tsserver` process. Those options depend
 
 **autoImportFileExcludePatterns** [array of strings] Glob patterns of files to exclude from auto imports. Relative paths are resolved relative to the workspace root. Since TypeScript 4.8.2+. **Default**: `[]`
 
+**autoImportSpecifierExcludeRegexes** [array of strings] Regexp patterns of files to exclude from auto imports. **Default**: `[]`
+
 **disableSuggestions** [boolean] **Default**: `false`
 
 **quotePreference** [string] Supported values `'auto'`, `'double'`, `'single'`. **Default**: `'auto'`
@@ -84,17 +86,23 @@ Specifies preferences for the internal `tsserver` process. Those options depend
 
 **lazyConfiguredProjectsFromExternalProject** [boolean] **Default**: `false`
 
+**maximumHoverLength** [number] A positive integer indicating the maximum length of a hover text before it is truncated. **Default**: `500`
+
 <a name="organizeImportsIgnoreCase"></a> **organizeImportsIgnoreCase** [string or boolean] Indicates whether imports should be organized in a case-insensitive manner. Supported values: `'auto'`, `boolean`. **Default**: `'auto'`
 
-<a name="organizeImportsCollation"></a> **organizeImportsCollation** [string] Indicates whether imports should be organized via an "ordinal" (binary) comparison using the numeric value of their code points, or via "unicode" collation (via the [Unicode Collation Algorithm](https://unicode.org/reports/tr10/#Scope)) using rules associated with the locale specified in [organizeImportsCollationLocale](#organizeImportsCollationLocale). Supported values: `'ordinal'`, `'unicode'`. **Default**: `'ordinal'`
+<a name="organizeImportsCollation"></a> **organizeImportsCollation** [string] Indicates whether imports should be organized via an "ordinal" (binary) comparison using the numeric value of their code points, or via "unicode" collation (via the [Unicode Collation Algorithm](https://unicode.org/reports/tr10/#Scope)) using rules associated with the locale specified in [organizeImportsLocale](#organizeImportsLocale). Supported values: `'ordinal'`, `'unicode'`. **Default**: `'ordinal'`
 
-<a name="organizeImportsCollationLocale"></a> **organizeImportsCollationLocale** [string] Indicates the locale to use for "unicode" collation. If not specified, the locale `"en"` is used as an invariant for the sake of consistent sorting. Use `"auto"` to use the detected UI locale. This preference is ignored if [organizeImportsCollation](#organizeImportsNumericCollation) is not `"unicode"`. **Default**: `'en'`
+<a name="organizeImportsLocale"></a> **organizeImportsLocale** [string] Indicates the locale to use for "unicode" collation. If not specified, the locale `"en"` is used as an invariant for the sake of consistent sorting. Use `"auto"` to use the detected UI locale. This preference is ignored if [organizeImportsCollation](#organizeImportsNumericCollation) is not `"unicode"`. **Default**: `'en'`
 
 <a name="organizeImportsNumericCollation"></a> **organizeImportsNumericCollation** [boolean] Indicates whether numeric collation should be used for digit sequences in strings. When `true`, will collate strings such that `a1z < a2z < a100z`. When `false`, will collate strings such that `a1z < a100z < a2z`. This preference is ignored if [organizeImportsCollation](#organizeImportsCollation) is not `"unicode"`. **Default**: `false`
 
-**organizeImportsAccentCollation** [boolean] Indicates whether accents and other diacritic marks are considered unequal for the purpose of collation. When `true`, characters with accents and other diacritics will be collated in the order defined by the locale specified in [organizeImportsCollationLocale](#organizeImportsCollationLocale). This preference is ignored if [organizeImportsCollation](#organizeImportsCollation) is not `"unicode"`. **Default**: `true`
+**organizeImportsAccentCollation** [boolean] Indicates whether accents and other diacritic marks are considered unequal for the purpose of collation. When `true`, characters with accents and other diacritics will be collated in the order defined by the locale specified in [organizeImportsLocale](#organizeImportsLocale). This preference is ignored if [organizeImportsCollation](#organizeImportsCollation) is not `"unicode"`. **Default**: `true`
+
+**organizeImportsCaseFirst** [string or boolean] Indicates whether upper case or lower case should sort first. When `false`, the default order for the locale specified in [organizeImportsLocale](#organizeImportsLocale) is used. This preference is ignored if [organizeImportsCollation](#organizeImportsCollation) is not `"unicode"`. This preference is also ignored if we are using case-insensitive sorting, which occurs when [organizeImportsIgnoreCase](#organizeImportsIgnoreCase) is `true`, or if [organizeImportsIgnoreCase](#organizeImportsIgnoreCase) is `"auto"` and the auto-detected case sensitivity is determined to be case-insensitive. Supported values: `'upper'`, `'lower'`, `false`. **Default**: `false`
+
+**organizeImportsTypeOrder** ["last" | "inline" | "first"] Indicates where named type-only imports should sort. "inline" sorts named imports without regard to if the import is type-only. **Default**: `"last"`
 
-**organizeImportsCaseFirst** [string or boolean] Indicates whether upper case or lower case should sort first. When `false`, the default order for the locale specified in [organizeImportsCollationLocale](#organizeImportsCollationLocale) is used. This preference is ignored if [organizeImportsCollation](#organizeImportsCollation) is not `"unicode"`. This preference is also ignored if we are using case-insensitive sorting, which occurs when [organizeImportsIgnoreCase](#organizeImportsIgnoreCase) is `true`, or if [organizeImportsIgnoreCase](#organizeImportsIgnoreCase) is `"auto"` and the auto-detected case sensitivity is determined to be case-insensitive. Supported values: `'upper'`, `'lower'`, `false`. **Default**: `false`
+**preferTypeOnlyAutoImports** [boolean]  **Default**: `false`
 
 **providePrefixAndSuffixTextForRename** [boolean]  **Default**: `true`
 

diff --git a/package.json b/package.json
@@ -67,7 +67,7 @@
     "size-limit": "^11.2.0",
     "source-map-support": "^0.5.21",
     "tempy": "^3.1.0",
-    "typescript": "^5.3.3",
+    "typescript": "^5.9.2",
     "typescript-eslint": "^8.39.0",
     "vitest": "^1.6.1",
     "vscode-jsonrpc": "^8.2.1",

diff --git a/src/features/fileConfigurationManager.ts b/src/features/fileConfigurationManager.ts
@@ -27,6 +27,7 @@ const DEFAULT_TSSERVER_PREFERENCES: Required<ts.server.protocol.UserPreferences>
     allowRenameOfImportPath: true,
     allowTextChangesInNewFiles: true,
     autoImportFileExcludePatterns: [],
+    autoImportSpecifierExcludeRegexes: [],
     disableLineTextInReferences: true,
     disableSuggestions: false,
     displayPartsForJSDoc: true,
@@ -53,12 +54,15 @@ const DEFAULT_TSSERVER_PREFERENCES: Required<ts.server.protocol.UserPreferences>
     interactiveInlayHints: true,
     jsxAttributeCompletionStyle: 'auto',
     lazyConfiguredProjectsFromExternalProject: false,
+    maximumHoverLength: 500,
     organizeImportsAccentCollation: true,
     organizeImportsCaseFirst: false,
     organizeImportsCollation: 'ordinal',
-    organizeImportsCollationLocale: 'en',
+    organizeImportsLocale: 'en',
     organizeImportsIgnoreCase: 'auto',
     organizeImportsNumericCollation: false,
+    organizeImportsTypeOrder: 'last',
+    preferTypeOnlyAutoImports: false,
     providePrefixAndSuffixTextForRename: true,
     provideRefactorNotApplicableReason: true,
     quotePreference: 'auto',

diff --git a/src/features/inlay-hints.ts b/src/features/inlay-hints.ts
@@ -109,8 +109,11 @@ function areInlayHintsEnabledForFile(fileConfigurationManager: FileConfiguration
 
 function fromProtocolInlayHintKind(kind: ts.server.protocol.InlayHintKind): lsp.InlayHintKind | undefined {
     switch (kind) {
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-enum-comparison
         case 'Parameter': return lsp.InlayHintKind.Parameter;
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-enum-comparison
         case 'Type': return lsp.InlayHintKind.Type;
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-enum-comparison
         case 'Enum': return undefined;
         default: return undefined;
     }

diff --git a/src/lsp-server.test.ts b/src/lsp-server.test.ts
@@ -1583,7 +1583,7 @@ accessSync('t');`,
                             edits: [
                                 {
                                     // Prefers import that is declared in package.json.
-                                    newText: 'import { existsSync } from "fs-extra";\n\n',
+                                    newText: 'import { existsSync } from "fs";\n\n',
                                     range: {
                                         end: {
                                             character: 0,

diff --git a/src/ts-protocol.ts b/src/ts-protocol.ts
@@ -107,27 +107,43 @@ export enum HighlightSpanKind {
 }
 
 export enum JsxEmit {
-    None = 'None',
-    Preserve = 'Preserve',
-    ReactNative = 'ReactNative',
-    React = 'React'
+    None = 'none',
+    Preserve = 'preserve',
+    ReactNative = 'react-native',
+    React = 'react',
+    ReactJSX = 'react-jsx',
+    ReactJSXDev = 'react-jsxdev',
 }
 
 export enum ModuleKind {
-    None = 'None',
-    CommonJS = 'CommonJS',
-    AMD = 'AMD',
-    UMD = 'UMD',
-    System = 'System',
-    ES6 = 'ES6',
-    ES2015 = 'ES2015',
-    ESNext = 'ESNext'
+    None = 'none',
+    CommonJS = 'commonjs',
+    AMD = 'amd',
+    UMD = 'umd',
+    System = 'system',
+    ES6 = 'es6',
+    ES2015 = 'es2015',
+    ES2020 = 'es2020',
+    ES2022 = 'es2022',
+    ESNext = 'esnext',
+    Node16 = 'node16',
+    Node18 = 'node18',
+    Node20 = 'node20',
+    NodeNext = 'nodenext',
+    Preserve = 'preserve',
 }
 
 export enum ModuleResolutionKind {
-    Classic = 'Classic',
-    Node = 'Node',
-    // Bundler = 'Bundler'
+    Classic = 'classic',
+    /** @deprecated Renamed to `Node10` */
+    Node = 'node',
+    /** @deprecated Renamed to `Node10` */
+    // eslint-disable-next-line @typescript-eslint/no-duplicate-enum-values
+    NodeJs = 'node',
+    Node10 = 'node10',
+    Node16 = 'node16',
+    NodeNext = 'nodenext',
+    Bundler = 'bundler',
 }
 
 export enum SemicolonPreference {
@@ -205,18 +221,21 @@ export enum ScriptElementKindModifier {
 }
 
 export enum ScriptTarget {
-    ES3 = 'ES3',
-    ES5 = 'ES5',
-    ES6 = 'ES6',
-    ES2015 = 'ES2015',
-    ES2016 = 'ES2016',
-    ES2017 = 'ES2017',
-    ES2018 = 'ES2018',
-    ES2019 = 'ES2019',
-    ES2020 = 'ES2020',
-    ES2021 = 'ES2021',
-    ES2022 = 'ES2022',
-    ESNext = 'ESNext'
+    ES3 = 'es3',
+    ES5 = 'es5',
+    ES6 = 'es6',
+    ES2015 = 'es2015',
+    ES2016 = 'es2016',
+    ES2017 = 'es2017',
+    ES2018 = 'es2018',
+    ES2019 = 'es2019',
+    ES2020 = 'es2020',
+    ES2021 = 'es2021',
+    ES2022 = 'es2022',
+    ESNext = 'esnext',
+    JSON = 'json',
+    // eslint-disable-next-line @typescript-eslint/no-duplicate-enum-values
+    Latest = 'esnext',
 }
 
 export enum SymbolDisplayPartKind {

diff --git a/src/tsServer/server.ts b/src/tsServer/server.ts
@@ -378,7 +378,7 @@ class RequestRouter {
                     request
                         .then(result => {
                             requestStates[serverIndex] = RequestState.Resolved;
-                            const erroredRequest = requestStates.find(state => state.type === RequestState.Type.Errored) as RequestState.Errored | undefined;
+                            const erroredRequest = requestStates.find(state => state.type === RequestState.Type.Errored);
                             if (erroredRequest) {
                                 // We've gone out of sync
                                 this.delegate.onFatalError(command, erroredRequest.err);

diff --git a/src/utils/api.ts b/src/utils/api.ts
@@ -33,6 +33,7 @@ export default class API {
     public static readonly v490 = API.fromSimpleString('4.9.0');
     public static readonly v500 = API.fromSimpleString('5.0.0');
     public static readonly v510 = API.fromSimpleString('5.1.0');
+    public static readonly v540 = API.fromSimpleString('5.4.0');
 
     public static fromVersionString(versionString: string): API {
         let version = semver.valid(versionString);

diff --git a/src/utils/tsconfig.ts b/src/utils/tsconfig.ts
@@ -19,10 +19,10 @@ export function getInferredProjectCompilerOptions(
     workspaceConfig: WorkspaceConfigurationImplicitProjectConfigurationOptions,
 ): ts.server.protocol.ExternalProjectCompilerOptions {
     const projectConfig: ts.server.protocol.ExternalProjectCompilerOptions = {
-        module: ModuleKind.ESNext,
-        moduleResolution: ModuleResolutionKind.Node,
+        module: version.gte(API.v540) ? ModuleKind.Preserve : ModuleKind.ESNext,
+        moduleResolution: version.gte(API.v540) ? ModuleResolutionKind.Bundler : ModuleResolutionKind.Node,
         target: ScriptTarget.ES2022,
-        jsx: JsxEmit.React,
+        jsx: JsxEmit.ReactJSX,
     };
 
     if (version.gte(API.v500)) {

diff --git a/yarn.lock b/yarn.lock
@@ -2392,10 +2392,10 @@ typescript-eslint@^8.39.0:
     "@typescript-eslint/typescript-estree" "8.39.0"
     "@typescript-eslint/utils" "8.39.0"
 
-typescript@^5.3.3:
-  version "5.3.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.3.3.tgz#b3ce6ba258e72e6305ba66f5c9b452aaee3ffe37"
-  integrity sha512-pXWcraxM0uxAS+tN0AG/BF2TyqmHO014Z070UsJ+pFvYuRSq8KH8DmWpnbXe0pEPDHXZV3FcAbJkijJ5oNEnWw==
+typescript@^5.9.2:
+  version "5.9.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.9.2.tgz#d93450cddec5154a2d5cabe3b8102b83316fb2a6"
+  integrity sha512-CWBzXQrc/qOkhidw1OzBTQuYRbfyxDXJMVJ1XNwUHGROVmuaeiEm3OslpZ1RV96d7SKKjZKrSJu3+t/xlw3R9A==
 
 ufo@^1.5.4:
   version "1.6.1"