Please provide a 6.3.0 release, required for Minizinc

[StefanBruens]

Current minizinc depends on Gecode 6.3, but last release is 6.2.0

https://github.com/MiniZinc/libminizinc/blob/a56602765b4294b796c063664733b28f5a663af7/CMakeLists.txt#L36

find_package(Gecode 6.3 COMPONENTS Driver Float Int Kernel Minimodel Search Set Support)

[Dekker1]

Although I do think that it would be a good idea to release a new version of Gecode, it should be noted that in the develop version of MiniZinc the minimum required version has been reverted to Gecode 6.2.

The version bump was only made because the internal api change of a stop-object in Gecode between the versions. The MiniZinc code base now correctly uses the correct api based on which version of Gecode is used.

[StefanBruens]

The 6.2.0 release is also not buildable on most recent distributions, due to C++ code issues, fixed incorrect paths in CMakeLists.txt and so on, while a current git snapshot builds mostly without issues.

[StefanBruens]

Any progress towards a release? Any help needed/wanted?