Right now, I opened some pull requests for the regressions.
[REG2.063a] Issue 10067 - Recursive template instantation
[REG2.063a] Issue 10047 - opDispatch instantiation failure should be gagged for UFCS
[REG2.062] Issue 9957 - Taking pointer of enum float array gives some garbage
And I think these changes are blocker, so necessary for the 2.063 release.
Issue 10066 - Template opEquals sometimes obstructs struct compilation
Issue 10005 - struct variable declaration and const-correctness
Kenji Hara