Since version 1.1.x I have started creating GitHub releases: https://github.com/marcingminski/sqlwatch/releases to retain previous versions in case you want to re-download specific version.
Releases are created from the master branch so master will always contain the most recent version. If you are writing automation you can point it to the master branch.
Since version 1.3 DACPACs are no longer included in commits. This is because they are binary files often causing merge conflicts. DACPACs are now generated during the post pull merge build and are packaged up and made available as part of the release, in a zip file. To programmatically access the latest release please refer to the GitHub API documentation.
for the latest release please see the Changelog section