Document ESLint 10 migration blockers - ecosystem not ready

[Copilot]

ESLint 10.0.0 is available but the plugin ecosystem lacks compatibility. Migration attempted and reverted due to runtime failures.

Issue

Parsers return scope managers incompatible with ESLint 10's API changes:

TypeError: scopeManager.addGlobals is not a function

Ecosystem Blockers

• @babel/eslint-parser: v8.0.0-rc.1 supports only ^9.0.0
• typescript-eslint: v8.55.0 supports only ^8.57.0 || ^9.0.0 (canary v8.55.1-alpha.4 fails at runtime)
• eslint-plugin-react: v7.37.5 supports up to ^9.7
• eslint-plugin-react-hooks: v5.2.0 supports up to ^9.0.0

Next Steps

Monitor and retry when dependencies release ESLint 10 support:

1. @babel/eslint-parser v8.0.0 stable
2. typescript-eslint v9 or updated v8
3. React plugins updates

Migration requires only version bumps in package.json once ecosystem is ready.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• eslint.org
  • Triggering command: /usr/bin/curl curl -s REDACTED (dns block)
• https://api.github.com/repos/eslint/eslint/releases/tags/v10.0.0
  • Triggering command: /usr/bin/curl curl -s REDACTED git conf�� unset --global pec/node_modules/.bin/node credential.helpebash (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

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This section details on the original issue you should resolve

<issue_title>ESLint 10</issue_title>
<issue_description>Migrate from ESLint 9 to ESLint 10</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes ESLint 10 #142

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