I have noticed the following errors on Material-UI side trying to upgrade this dependency:

The following aria seem to not be supported as expected:
aria-labelledbyaria-controlsaria-describedbyarial-query returns the type idlist. Something that is not supported in the implementation: https://github.com/evcohen/eslint-plugin-jsx-a11y/blob/b800f40a2a69ad48015ae9226fbe879f946757ed/src/rules/aria-proptypes.js#L32
This is affecting the airbnb config as well, fwiw.
I'll get this fixed tonight.
6.2.0 update is on the way :)
Here's the change in aria-query that is causing the errors: https://github.com/A11yance/aria-query/commit/6978637765f455e5be36dbbed1e4ff9ca9957f8b
What I don't yet understand is why none of the tests in this repo caught this. I don't want to simply update aria-query without getting a test case to fail here first so we don't have something like this happen again in the future.
Closed in #456.
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Here's the change in aria-query that is causing the errors: https://github.com/A11yance/aria-query/commit/6978637765f455e5be36dbbed1e4ff9ca9957f8b
What I don't yet understand is why none of the tests in this repo caught this. I don't want to simply update aria-query without getting a test case to fail here first so we don't have something like this happen again in the future.