Barry Warsaw wrote:
OTOH, a more formal gamma phase would allow us to say "absolutely no changes are allowed now unless it's to fix backward compatibility". No more sneaking in new sys functions or types module constants <wink> during the gamma phase.
This is pretty common in project management. For instance, GCC has a rather complex 4-stage release process, whose last phase (beginning at the point the release is branched in SVN) is made of commits only for regressions.