feat: drop support for node v14 and test against node v20

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ on:
   merge_group:
 
 env:
-  PRIMARY_NODE_VERSION: 18
+  PRIMARY_NODE_VERSION: 20
   # Only set the read-write token if we are on the main branch
   NX_CLOUD_ACCESS_TOKEN: ${{ (github.event_name == 'push' && github.ref == 'refs/heads/main') && secrets.NX_CLOUD_ACCESS_TOKEN || '' }}
 
@@ -136,7 +136,7 @@ jobs:
     strategy:
       matrix:
         # just run on the oldest and latest supported versions and assume the intermediate versions are good
-        node-version: [14, 18]
+        node-version: [16, 20]
         package:
           [
             'ast-spec',

docs/linting/Typed_Linting.mdx

@@ -34,7 +34,7 @@ See [our TSConfig inclusion FAQ](./Troubleshooting.mdx#i-get-errors-telling-me-e
 
 In more detail:
 
-- `plugin:@typescript-eslint/recommended-type-checked` is another [recommended configuration](./CONFIGURATIONS.mdx) we provide. This one contains recommended rules that additionally require type information.
+- `plugin:@typescript-eslint/recommended-type-checked` is another [recommended configuration](./Configurations.mdx) we provide. This one contains recommended rules that additionally require type information.
 - `parserOptions.project` tells our parser how to find the TSConfig for each source file (`true` indicates to find the closest `tsconfig.json` for each source file)
   - If your project is a multi-package monorepo, see [our docs on configuring a monorepo](./typed-linting/Monorepos.mdx).
 - `parserOptions.tsconfigRootDir` tells our parser the absolute path of your project's root directory (see [Parser#tsconfigRootDir](../architecture/Parser.mdx#tsconfigRootDir)).

package.json

@@ -50,7 +50,7 @@
     "typecheck": "nx run-many --target=typecheck --parallel"
   },
   "engines": {
-    "node": "^14.18.0 || ^16.0.0 || >=18.0.0"
+    "node": "^16.0.0 || >=18.0.0"
   },
   "devDependencies": {
     "@babel/code-frame": "^7.21.4",

packages/ast-spec/package.json

@@ -9,7 +9,7 @@
     "estree"
   ],
   "engines": {
-    "node": "^14.18.0 || ^16.0.0 || >=18.0.0"
+    "node": "^16.0.0 || >=18.0.0"
   },
   "files": [
     "dist",

packages/eslint-plugin-tslint/package.json

@@ -19,7 +19,7 @@
     "./package.json": "./package.json"
   },
   "engines": {
-    "node": "^14.18.0 || ^16.0.0 || >=18.0.0"
+    "node": "^16.0.0 || >=18.0.0"
   },
   "repository": {
     "type": "git",

packages/eslint-plugin/package.json

@@ -23,7 +23,7 @@
     }
   },
   "engines": {
-    "node": "^14.18.0 || ^16.0.0 || >=18.0.0"
+    "node": "^16.0.0 || >=18.0.0"
   },
   "repository": {
     "type": "git",

packages/parser/package.json

@@ -17,7 +17,7 @@
     "./package.json": "./package.json"
   },
   "engines": {
-    "node": "^14.18.0 || ^16.0.0 || >=18.0.0"
+    "node": "^16.0.0 || >=18.0.0"
   },
   "repository": {
     "type": "git",

packages/rule-schema-to-typescript-types/package.json

@@ -11,7 +11,7 @@
     "./package.json": "./package.json"
   },
   "engines": {
-    "node": "^14.18.0 || ^16.0.0 || >=18.0.0"
+    "node": "^16.0.0 || >=18.0.0"
   },
   "repository": {
     "type": "git",

packages/rule-tester/package.json

@@ -17,7 +17,7 @@
     "./package.json": "./package.json"
   },
   "engines": {
-    "node": "^14.18.0 || ^16.0.0 || >=18.0.0"
+    "node": "^16.0.0 || >=18.0.0"
   },
   "repository": {
     "type": "git",

packages/scope-manager/package.json

@@ -17,7 +17,7 @@
     "./package.json": "./package.json"
   },
   "engines": {
-    "node": "^14.18.0 || ^16.0.0 || >=18.0.0"
+    "node": "^16.0.0 || >=18.0.0"
   },
   "repository": {
     "type": "git",

packages/type-utils/package.json

@@ -18,7 +18,7 @@
     "./package.json": "./package.json"
   },
   "engines": {
-    "node": "^14.18.0 || ^16.0.0 || >=18.0.0"
+    "node": "^16.0.0 || >=18.0.0"
   },
   "repository": {
     "type": "git",

packages/types/package.json

@@ -18,7 +18,7 @@
     "./package.json": "./package.json"
   },
   "engines": {
-    "node": "^14.18.0 || ^16.0.0 || >=18.0.0"
+    "node": "^16.0.0 || >=18.0.0"
   },
   "repository": {
     "type": "git",

packages/typescript-estree/package.json

@@ -21,7 +21,7 @@
     }
   },
   "engines": {
-    "node": "^14.18.0 || ^16.0.0 || >=18.0.0"
+    "node": "^16.0.0 || >=18.0.0"
   },
   "repository": {
     "type": "git",

packages/utils/package.json

@@ -38,7 +38,7 @@
     "./package.json": "./package.json"
   },
   "engines": {
-    "node": "^14.18.0 || ^16.0.0 || >=18.0.0"
+    "node": "^16.0.0 || >=18.0.0"
   },
   "repository": {
     "type": "git",

packages/visitor-keys/package.json

@@ -18,7 +18,7 @@
     "./package.json": "./package.json"
   },
   "engines": {
-    "node": "^14.18.0 || ^16.0.0 || >=18.0.0"
+    "node": "^16.0.0 || >=18.0.0"
   },
   "repository": {
     "type": "git",

packages/website-eslint/package.json

@@ -14,7 +14,7 @@
     }
   },
   "engines": {
-    "node": "^14.18.0 || ^16.0.0 || >=18.0.0"
+    "node": "^16.0.0 || >=18.0.0"
   },
   "scripts": {
     "build": "yarn tsx ./build.ts",

packages/website/blog/2023-03-13-announcing-typescript-eslint-v6-beta.md

@@ -162,6 +162,7 @@ Several rules were changed in significant enough ways to be considered breaking
 
 - [feat(typescript-estree): deprecate createDefaultProgram](https://github.com/typescript-eslint/typescript-eslint/pull/5890): Renames `createDefaultProgram` to `deprecated__createDefaultProgram`, with associated `@deprecated` TSDoc tags and warnings.
 - [feat: drop support for node v12](https://github.com/typescript-eslint/typescript-eslint/pull/5918)
+- [feat: drop support for node v14](https://github.com/typescript-eslint/typescript-eslint/pull/7022)
 - [feat: bump minimum supported TS version to 4.3.5](https://github.com/typescript-eslint/typescript-eslint/issues/6923): this matches [DefinitelyTyped's 2-year support window](https://github.com/DefinitelyTyped/DefinitelyTyped#support-window).
 - [chore: drop support for ESLint v6](https://github.com/typescript-eslint/typescript-eslint/pull/5972)
 - [feat(eslint-plugin): [prefer-readonly-parameter-types] added an optional type allowlist](https://github.com/typescript-eslint/typescript-eslint/pull/4436): changes the public `isTypeReadonlyArrayOrTuple` function's first argument from a `checker: ts.TypeChecker` to a full `program: ts.Program`