I am a huge fan of 13.06.5 and know that Daid is on vacation. This is a minor issue with an easy workaround, but ...
when saving gcode or a profile, the extension (.gcode or .ini) is not automatically added to the proposed filename. I'm pretty sure that this is not the expected or desired behavior (but I haven't done a regression search to check).
In every other respect, 13.06.5 seems to be perfect!
Cheers,
Doug