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merged 2 commits into from
Nov 10, 2025
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docs: remove parserOptions.globalReturn removal from v10 post #837

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5b539b4
docs: remove `parserOptions.globalReturn` removal from v10 post
Pixel998 Nov 7, 2025
9855309
add update about postponed globalReturn removal
Pixel998 Nov 7, 2025
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2 changes: 1 addition & 1 deletion src/_data/blog-dates.json
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Original file line number Diff line number Diff line change
Expand Up @@ -444,7 +444,7 @@
"2025-08-22-eslint-v9.34.0-released.md": "2025-08-22T20:55:31.994Z",
"2025-09-05-eslint-v9.35.0-released.md": "2025-09-05T14:56:18.623Z",
"2025-09-19-eslint-v9.36.0-released.md": "2025-09-19T14:38:22.839Z",
"2025-10-03-whats-coming-in-eslint-10.0.0.md": "2025-10-01T14:36:12.926Z",
"2025-10-03-whats-coming-in-eslint-10.0.0.md": "2025-11-07T21:49:42.855Z",
"2025-10-03-eslint-v9.37.0-released.md": "2025-10-03T20:52:47.207Z",
"2025-10-17-eslint-v9.38.0-released.md": "2025-10-17T19:05:47.728Z",
"2025-10-31-eslint-v9.39.0-released.md": "2025-10-31T20:44:14.594Z",
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6 changes: 2 additions & 4 deletions src/content/blog/2025-10-03-whats-coming-in-eslint-10.0.0.md
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Expand Up @@ -104,10 +104,6 @@ The `v10_config_lookup_from_file` flag, which changes configuration lookup to st

This change ensures that ESLint configuration discovery works more intuitively, especially in monorepo setups or when linting files in different directories.

### Removal of `parserOptions.globalReturn`

ESLint v10.0.0 will [remove the `parserOptions.globalReturn` option](https://github.com/eslint/js/issues/525) from Espree, the default ESLint parser, which may affect some user config files. Because global `return` is supported primarily in CommonJS environments, you can instead set `languageOptions.sourceType` to `"commonjs"`.

### Removal of `type` property in errors of invalid `RuleTester` cases

In ESLint v10.0.0, the deprecated `type` property in errors of invalid test cases for rules will be no longer supported. Using the `type` property in test cases [will throw an error](https://github.com/eslint/eslint/issues/19029).
Expand Down Expand Up @@ -152,3 +148,5 @@ We expect the first alpha release of ESLint v10.0.0 to be available in November
All releases will be announced on this blog, our [X account](https://twitter.com/geteslint), our [Bluesky account](https://bsky.app/profile/eslint.org) and our [Mastodon account](https://fosstodon.org/@eslint). We encourage users to test the alpha and beta releases to help ensure a smooth transition to v10.0.0.

Stay tuned for more detailed information about specific changes as we approach each release milestone.

**Update(2025-11-07)**: We previously planned on removing `parserOptions.globalReturn` but decided to hold off based on feedback from the community.