As we approach our next release, we wish to ensure stability. | Project Radiant

As we approach our next release, we wish to ensure stability. Which is why we wish to announce our CBT & OBT programs, select devices will be joining these programs based on demand, you can ask your maintainer to join the program, at max there will be 3 or 4 devices in the CBT program. These will be to ensure proper build stability, once a feature passes the CBT stage, the build will be shared for OBT which is accessible to all, once everything is checked and is fine, we'll do a stable public release alongside source push.

TL;DR
Ask maintainer in device group if you want betas.