ESLint v8.0.0-rc.0 released

Highlights

This is a summary of the major changes you need to know about for this version of ESLint.

This version of ESLint is provided to gather feedback from the community before releasing the final version. Please try it and report any unexpected issues.

Installing

Since this is a pre-release version, you will not automatically be upgraded by npm. You must specify the next tag when installing:

npm i eslint@next --save-dev

You can also specify the version directly:

npm i eslint@8.0.0-rc.0 --save-dev

Migration Guide

As there are a lot of changes, we’ve created a migration guide describing the changes in great detail along with the steps you should take to address them. We expect that most users should be able to upgrade without any build changes, but the migration guide should be a useful resource if you encounter problems.

Enhancements

• 67c0074 Update: Suggest missing rule in flat config (fixes #14027) (#15074) (Nicholas C. Zakas)
• cf34e5c Update: space-before-blocks ignore after switch colons (fixes #15082) (#15093) (Milos Djermanovic)
• 14a4739 Update: no-new-func rule catching eval case of MemberExpression (#14860) (Mojtaba Samimi)
• 0a1a850 Update: include ruleId in error logs (fixes #15037) (#15053) (Ari Perkkiö)

Bug Fixes

• c9efb5f Fix: preserve formatting when rules are removed from disable directives (#15081) (Milos Djermanovic)

Documentation

• 7f2346b Docs: Update release blog post template (#15094) (Nicholas C. Zakas)
• a744dfa Docs: Update CLA info (#15058) (Brian Warner)

Chores

• fabdf8a Chore: Remove target.all from Makefile.js (#15088) (Hirotaka Tagawa / wafuwafu13)
• 05d7140 Chore: document target global in Makefile.js (#15084) (Hirotaka Tagawa / wafuwafu13)
• 47be800 Chore: test Property > .key with { a = 1 } pattern (fixes #14799) (#15072) (Milos Djermanovic)
• 9fb0f70 Chore: fix bug report template (#15061) (Milos Djermanovic)
• f87e199 Chore: Cleanup issue templates (#15039) (Nicholas C. Zakas)