Results 7 comments of maao

> this also intersects with validation improvements being made to ValidateLabelSelector in #107531 ... we may want to merge that first /hold thanks for reminding. hold until the potential conflicts...

> It looks generally good, but there is something else that we need to make sure: > > When tightening validation, a Pod that used to work should continue to...

release note has been added, remove hold label /hold cancel @dims this PR has been rebased.