Set 'ecmaVersion' to 'latest'.

davidlehn · davidlehn · commit 9adf016cced0 · 2025-08-08T22:36:24.000-04:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -9,6 +9,8 @@
     were changed, added, or removed between v8 and v9.
   - The way configuration is done change significantly. Suggestions welcome on
     how best to adapt to the new style.
+- **BREAKING**: Set `ecmaVersion` to `latest`. Override in project config if a
+  specific version limitation is required.
 
 ### Migration
 - ESLint v9 is a major breaking change and will require manual updates.
diff --git a/import.js b/import.js
@@ -3,7 +3,7 @@ import eslintPluginImport from 'eslint-plugin-import';
 export default [
   {
     languageOptions: {
-      ecmaVersion: 2020,
+      ecmaVersion: 'latest',
       sourceType: 'module'
     },
     plugins: {
diff --git a/index.js b/index.js
@@ -5,7 +5,7 @@ export default [
   js.configs.recommended,
   {
     languageOptions: {
-      ecmaVersion: 2022,
+      ecmaVersion: 'latest',
       sourceType: 'module'
     },
     rules: {
diff --git a/module.js b/module.js
@@ -4,7 +4,7 @@ export default [
   //eslintPluginUnicorn.configs['flat/recommended'],
   {
     languageOptions: {
-      ecmaVersion: 2022,
+      ecmaVersion: 'latest',
       sourceType: 'module'
     },
     plugins: {

Original file line number	Diff line number	Diff line change
`@@ -3,7 +3,7 @@ import eslintPluginImport from 'eslint-plugin-import';`
`3`	`3`	`export default [`
`4`	`4`	`{`
`5`	`5`	`languageOptions: {`
`6`		`- ecmaVersion: 2020,`
	`6`	`+ ecmaVersion: 'latest',`
`7`	`7`	`sourceType: 'module'`
`8`	`8`	`},`
`9`	`9`	`plugins: {`
Original file line number	Diff line number	Diff line change
`@@ -4,7 +4,7 @@ export default [`
`4`	`4`	`//eslintPluginUnicorn.configs['flat/recommended'],`
`5`	`5`	`{`
`6`	`6`	`languageOptions: {`
`7`		`- ecmaVersion: 2022,`
	`7`	`+ ecmaVersion: 'latest',`
`8`	`8`	`sourceType: 'module'`
`9`	`9`	`},`
`10`	`10`	`plugins: {`