+ - Fix failures on 5.13.6 due to incorrect version number threshold
+ (RT#74683)
+
+ [0.22] (official fix of all the %^H ickyness)
+ - Simplify the >= 5.10 PP variant even more - move the hook from
+ DESTROY into DELETE
+ - Force explicit callback invocation order on 5.8 PP
+
[0.21_02]
- Replace the %^H tie approach with fieldhashes, fixes all known
corner cases and caveats on supported perls >= 5.8.1 (FC)