Since 2.076.0 dmd's version has the -dirty flag set. We've changed the version determinatio https://github.com/dlang/dmd/commit/09cc628724be87a6e317223059202ea652630ef5 and now the release build script seems to pick up the -dirty from it's git repo.
There shouldn't be any difference though, the only thing the build script changes is to overwrite the VERSION file.
Comment #1 by github-bugzilla — 2017-09-04T21:07:24Z