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Re: Extension compatibility policy
Joseph S. Myers wrote:
And in that case we did consider users: although the concatenation of
__FUNCTION__ wasn't documented, it emitted a deprecation warning in the
3.0, 3.1/3.2 and 3.3 release series before being removed in 3.4.
Fair enough. I think it is useful to include documentation in a clear
place when the incompatible change is finally made. Of course, not everyone
will read it :-)