What is the latest STABLE verison

Is there a STABLE version ?

Latest says beta - others also seem to be Pre-Release

Officialy No, except Duplicati 1, majority test results are fine.

Duplicati 2 is still in beta state.
Current beta is without mayor problems.

As the others have said, the current Beta is pretty well vetted and stable. Even most canary builds (except the very latest apparently) are pretty stable in my experience - I’ve used every canary so far (except the latest build until they work out some of the issues) and have had no big problems other than some cosmetic quirks.

I have no problems with the current beta… it’s very solid… using it on 9 computers.