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[Snyk] Security upgrade eslint from 4.1.0 to 9.26.0 #613

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[Snyk] Security upgrade eslint from 4.1.0 to 9.26.0 #613

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2 changes: 1 addition & 1 deletion fixtures/eslint/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
"private": true,
"name": "eslint-playground",
"dependencies": {
"eslint": "4.1.0",
"eslint": "9.26.0",
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@gemini-code-assist gemini-code-assist bot Jan 28, 2026

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critical

This upgrade of eslint from v4.1.0 to v9.26.0 is a significant major version jump and will likely cause breakages.

  1. Peer Dependency Mismatch: The eslint-plugin-react-hooks package, which is used in this playground, has a peerDependency on eslint that does not include version 9. The current range is "^3.0.0 || ^4.0.0 || ^5.0.0 || ^6.0.0 || ^7.0.0 || ^8.0.0-0". This will cause installation errors or warnings.

  2. Breaking Changes in ESLint: ESLint v9 introduced numerous breaking changes, including a new configuration system and significant alterations to the plugin API. The eslint-plugin-react-hooks plugin will need to be updated to be compatible with these new APIs. Without these updates, the plugin will not function correctly with ESLint v9.

Given that this is a test fixture for eslint-plugin-react-hooks, this change will almost certainly break the playground and any related tests. The eslint-plugin-react-hooks package must be updated to support ESLint v9 before this dependency can be upgraded here.

"eslint-plugin-react-hooks": "link:./proxy"
},
"scripts": {
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