ESLint v7.6.0 released

Highlights

RuleTester requires meta.fixable for fixable rules

Fixable rules are required to have a meta.fixable property. A bug in the RuleTester class (which is intended to help plugin authors write and test custom rules) was recently surfaced in which fixable rules that do not export metadata (the meta property) are not validated for the existence of a meta.fixable property, while rules that do export meta are.

This has been fixed in this release! Unfortunately, this can lead to new errors being reported by the RuleTester for rules that apply fixes and are missing a meta property. Please feel free to stop by our help channel if you need assistance resolving this issue.

Enhancements

• ecb2b73 Update: require meta for fixable rules in RuleTester (refs #13349) (#13489) (Milos Djermanovic)
• e71e298 Update: Change no-duplicate-case to comparing tokens (fixes #13485) (#13494) (Yosuke Ota)

Bug Fixes

• 318fe10 Fix: Do not output undefined as line and column when it’s unavailable (#13519) (haya14busa)
• 16b10fe Fix: Update the chatroom link to go directly to help channel (#13536) (Nicholas C. Zakas)

Documentation

• 6fb4edd Docs: fix broken links in developer guide (#13518) (Sam Chen)
• 6c4aea4 Docs: add ECMAScript 2020 to README (#13510) (Milos Djermanovic)