ESLint v8.39.0 released

Highlights

• Performance of SourceCode methods that search for comments has been improved following recommendations from a blog post by Marvin Hagemeister. For example, our tests showed that this change reduces linting time for eslint-plugin-jsdoc rules by 6~11%.
• The context.markVariableAsUsed(name) method is now deprecated in favor of SourceCode#markVariableAsUsed(name, node). This change is part of the implementation of language plugins.

Features

• 3f7af9f feat: Implement SourceCode#markVariableAsUsed() (#17086) (Nicholas C. Zakas)

Documentation

• 6987dc5 docs: Fix formatting in Custom Rules docs (#17097) (Milos Djermanovic)
• 4ee92e5 docs: Update README (GitHub Actions Bot)
• d8e9887 docs: Custom Rules cleanup/expansion (#16906) (Ben Perlmutter)
• 1fea279 docs: Clarify how to add to tsc agenda (#17084) (Nicholas C. Zakas)
• 970ef1c docs: Update triage board location (Nicholas C. Zakas)
• 6d8bffd docs: Update README (GitHub Actions Bot)

Chores

• 60a6f26 chore: upgrade @eslint/js@8.39.0 (#17102) (Milos Djermanovic)
• d5ba5c0 chore: package.json update for @eslint/js release (ESLint Jenkins)
• f57eff2 ci: run tests on Node.js v20 (#17093) (Nitin Kumar)
• 9d1b8fc perf: Binary search in token store utils.search (#17066) (Francesco Trotta)
• 07a4435 chore: Add request for minimal repro to bug report (#17081) (Nicholas C. Zakas)
• eac4943 refactor: remove unnecessary use of SourceCode#getAncestors in rules (#17075) (Milos Djermanovic)
• 0a7b60a chore: update description of SourceCode#getDeclaredVariables (#17072) (Milos Djermanovic)
• 6e2df71 chore: remove unnecessary references to the LICENSE file (#17071) (Milos Djermanovic)