ESLint v1.9.0 released

by Nicholas C. Zakas - 6 November 2015

We just pushed ESLint v1.9.0, which is a minor release upgrade of ESLint. This release adds some new features and fixes several bugs found in the previous release.


Here are some highlights of changes in this release.

New Rules

Better npm 3 Support

Due to the changes in dependency management in npm 3, some users were getting errors when attempting to run ESLint. We've updated our dependencies and ESLint should now work correctly for users of npm 3.


  • New: Add no-case-declarations rule (fixes #4278) (Erik Arvidsson)


  • Update: Make radix accept a "as-needed" option (fixes #4048) (Michał Gołębiowski)
  • Update: Add default to max-nested-callbacks (fixes #4297) (alberto)
  • Update: Add quotes to error messages to improve clarity (fixes #4313) (alberto)
  • Update: Extract glob and filesystem logic from cli-engine (fixes #4305) (Ian VanSchooten)
  • Update: Detect and fix wrong linebreaks (fixes #3981) (alberto)

Bug Fixes

  • Fix: Update the message to include number of lines (fixes #4342) (Brian Delahunty)
  • Fix: Fixer to not overlap ranges among fix objects (fixes #4321) (Gyandeep Singh)
  • Fix: Check comments in space-in-parens (fixes #4302) (alberto)
  • Fix: tests failing due to differences in temporary paths (fixes #4324) (alberto)
  • Fix: Make tests compatible with Windows (fixes #4315) (Ian VanSchooten)
  • Fix: ensure using correct estraverse (fixes #3951) (Toru Nagashima)


  • Docs: ASI causes problem whether semicolons are used or not (Thai Pangsakulyanont)
  • Docs: update docs about using gitignore (Mateusz Derks)

Dependency Upgrades

  • Upgrade: Upgrade various dependencies (fixes #4303) (Gyandeep Singh)
  • Build: Clarify commit-check messages (fixes #4256) (Ian VanSchooten)
  • Build: Add node 5 to travis build (fixes #4310) (Gyandeep Singh)