eslint v6 support #2036

Just like #1834 and #1447, I'm filing this in advance.

eslint v6 alpha has been released.

The current plan is to release a new semver-major of both configs, that supports 3 || 4 || 5 || 6, and the next major after that will drop support for 3 || 4, and only support 5 || 6.

The timeframe for eslint v6 support is "probably not as soon as you would like, but as soon as we can".
Please accept this, and please add no noise to this thread beyond emoji reactions - distractions won't help anyone get the work done any faster.

Please do not file additional issues and do not file pull requests attempting to add support - please, instead, continue to use eslint v5 until such time as our configs support v6.

Peer Dep eslint combined v5 and v6 support released:

• eslint-plugin-import
  • PR
  • Release
• eslint-find-rules
  • PR
  • Release
• merge in all pending breaking changes
• update the base config
• publish the base config, semver-major
• eslint-plugin-react
  • PR
  • Release
• eslint-plugin-jsx-a11y
  • PR (blocked on import plugin)
  • Release
• update the main config
• publish the main config, semver-major