ESLint v8.21.0 released

We just pushed ESLint v8.21.0, which is a minor release upgrade of ESLint. This release adds some new features and fixes several bugs found in the previous release.

Highlights

  • ESLint will now print deprecation warnings for two changes that are coming in ESLint v9: First, rules with options must specify schemas. Second, rules must be defined using the object-style format that has been available since ESLint v2 rather than the legacy function-style format. See RFC85 for full details.
  • We took a big step toward ESLint’s new config system! The new FlatESLint class is now merged. Its API is not yet stable, and not all features are implemented yet, but it is accessible via the Node.js API for early testing. See RFC9 for the original design.

Features

Bug Fixes

Documentation

  • 2aadc93 docs: add anchors to headings inside docs content (#16134) (Strek)

Chores

  • 8892511 chore: Upgrade to Espree 9.3.3 (#16173) (Brandon Mills)
  • 1233bee chore: switch to eslint-plugin-node’s maintained fork (#16150) (唯然)
  • 97b95c0 chore: upgrade puppeteer v13 (#16151) (唯然)

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