We'll bump it as soon as we start testing against it.
We need to review the release notes and action things appropriately.

For posterity's sake: https://eslint.org/docs/6.0.0/user-guide/migrating-to-6.0.0

I did a quick check and it seems that the parser relies on eslint/lib/util/ast-utils which seems to have been removed from ESLint.

@mrmckeb - no an in-development, unreleased rule depends on that file, but it's not requried anywhere and not exposed to users, so it doesn't matter.

We already fixed the file dependency issues before the 6.0 release because some users were using the beta releases and reported issues.

This plugin will probably "just work" with eslint v6.
But until we've reviewed the changelog accordingly and tested it, we won't be bumping the version range.

OK, thanks @bradzacher. I had that fail when attempting to upgrade Create React App, but we may have been on an outdated version - I didn't investigate far as I was actually working on something else and it was a side-quest.