For nightly builds, the only meaningfull information about configuration is provided by the file name, for instance:
HDRMerge_master_continuous-64-g1408e42_release_64.zip
Branch: master
tag: continous
64: 64 commits form tag
g1408e42: 1408e42 hash from last commit
release: release build
64: 64 bit windows
The about window informations are not automatically updated with git configuration informations as it is done in Rawtherapee. Same for window title.
As far as I know, cacorrect branch is not merged into master branch.
Thoses branches include last commits.