If you use CentOS or RedHat, it’s a nice way of keeping kopia up-to-date similar to APT repository.
There are 3 release tracks:
stable- official tagged releases (no release candidates)
testing- official tagged releases (including release candidates)
unstable- nightly builds
All RPMs are signed. Please take them for a spin and report any issues here.
testing tracks have 0.6.4 build, unstable will have a build soon.