ESLint v6.0.0-rc.0 released

Highlights

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

1. BigInt and dynamic import are at stage 4 (aside from some TC39 formalities), so we have begun to accept PRs to incorporate them into core ESLint rules. The valid-typeof rule now supports BigInt. Please see #11803 to track our progress in fully supporting these newly standardized language features.
2. The sort-keys rule now supports a minKeys option.

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@6.0.0-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.

Features

• d662b17 New: Add classname attribute to JUnit testcase (refs #11068) (#11683) (Fabio Pitino)

Enhancements

• f403b07 Update: introduce minKeys option to sort-keys rule (fixes #11624) (#11625) (Christian)
• e4ab053 Update: support “bigint” in valid-typeof rule (#11802) (Colin Ihrig)
• 37e5193 Update: add endColumn to no-useless-escape (fixes #11629) (#11790) (Pig Fang)
• 9590587 Update: improve reported location of arrow-parens (fixes #11773) (#11775) (Pig Fang)

Bug Fixes

• 87451f4 Fix: no-octal should report NonOctalDecimalIntegerLiteral (fixes #11794) (#11805) (Milos Djermanovic)
• 21f3131 Fix: overrides handle relative paths as expected (fixes #11577) (#11799) (Toru Nagashima)
• 5509cdf Fix: fails the test case if autofix made syntax error (fixes #11615) (#11798) (Toru Nagashima)
• cb1922b Fix: show custom message for namespace import (fixes #11580) (#11791) (Pig Fang)

Documentation

• 20908a3 Docs: removed ‘>’ prefix from from docs/working-with-rules (#11818) (Alok Takshak)

Build Related

• ad4b048 Build: Fix typo in blog post template (fixes #11614) (#11782) (Kai Cataldo)

Chores

• e0fafc8 Chore: removes unnecessary assignment in loop (#11780) (Dimitri Mitropoulos)
• 8eaa9b2 Chore: remove incorrect comment (#11769) (薛定谔的猫)
• 4039a49 Chore: add .github/funding.yml (#11764) (Toru Nagashima)