We made our decision on a broad base. OCC 7.6.2 includes our fillet/chamfer crash fixes that affect many users.
There will always be issues in OCC and I think we should send them patches like @chennes did. A separate fixes branch like te one from user blobfish is in the long run hard to maintain.
For example we suffer from a nasty offset bug and have now our own fix in the code:
https://github.com/FreeCAD/FreeCAD/blob ... 28c44433e7
Ideally OCC should include a fixed version BRepOffsetAPI_MakeOffset.hxx
The OCC guys were in the past not eager to fix such thing but since the accepted chennes' fixes now quickly maybe they changed their mind. Call me an optimist