20.35.3

What's Changed

• release 20.35.1 by @gaborbernat in #2976
• Revert out effort to extract discovery by @gaborbernat in #2978
• release 20.35.2 by @gaborbernat in #2980
• test_too_many_open_files fails by @gaborbernat in #2979

Full Changelog: 20.35.1...20.35.3