A day or so before the release, restart all fuzzers with the latest binaries
and check if any unexpected crashes occur. Module loaders should not be
touched in this phase to prevent the introduction of unexpected crashes.
Update Release Notes.html, History.txt, readme.txt and
versionNumber.h
Update version number in all files
If year changed, see doc/year_changed.md
Download latest pinned externals via build/download_externals.cmd.
Run build/auto/build_openmpt_release_manual.cmd to build OpenMPT and the
release packages.