Comment by luca020400

Almost all device run on the initial android release (QPR0), and never shipped any of quarterly updates. Even less so using _main_ as a baseline so that point is moot.

With android 16 introducing "mid releases" (QPR2), they expect OEMs to start shipping those as well, QCOM already has a QPR2 BSP release, and Samsung is expected to release QPR2 based builds soon.

As far as contributions go, google usually wanted patches to apply to main, I don't think that ever changed. And even there now that AOSP development is fully closed, it's even easier as partners will likely just upload patches against internal main instead. Less integration work there as well.

There really isn't a good explanation as to why they want to do move code drop cadence, other than they can and want to avoid wasting time releasing QPR1/3 that no OEM ever shipped (expect Pixels that is)