well... except in the release notes
All this is all a bit of a tempest in a teacup, but you are correct regarding breaking code.
This problem, which rears its head here on the forum quite frequently and many of us devs have come across, should have been dealt with much earlier, since users were often coming across the problems of misusing the function vis à vie scope.
Concerns like yours are why these pre-release updates are published, so comments from the developer community may influence the official updates.
Q.E.D. devs should stay current on firmware updates.