I couldn't find any information at https://symless.com/synergy/release-notes which is where I always go when I see a new release. If there isn't already some information about the new release beta (v2.0.12 b), I assume it is coming soon.
In case information has been released, however, could someone please link to it? I'd gladly help and test the beta, but knowing roughly what changes have been made first would be nice.