Mac and Encore CS6 user here. I've been using the last dying version of Encore () on OSX 10.8.5 with no major issues for several months now (yes I know it's technically not supported beyond 10.7.x).
I'm just curious if anyone has tried it on the new Mavericks update yet and if so please post your results here. I may test it myself in the coming weeks and if I do I'll provide an update.
Thanks.