The update is available as a free download for all owners of Live 12 Suite, Standard, Intro and Lite.
Download Live 12.0.2 from your account section on Ableton.com, or let the auto-update do its thing.
Read the release notes for Live 12.0.2
Please head over to our Centercode bug tracking system and join our beta community to participate in Live 12 beta-testing.
Read the release notes for Live 12.0.5b5