One thing that I heavily recommend that you all do? Bug reports. Bug reports, bug reports, bug reports. CyanogenMod has a built-in Bug Report option, one that you can perform via the Developer Options - I'd recommend enabling the option to have it in your Power Menu, to make it a bit easier to access. If you catch any bugs, any instabilities, any of that, please, file a bug report and try to "trigger" the bug again - it's as easy as tapping the button, and that's it. System logs will be automatically emailed to the developer, as far as I can tell, and that may give him enough information to go off of and fix things up.
I'm not entirely sure if the Bug Report feature even works, to be honest, but... it's worth a try, yeah? Support will cease in November, and we should strive to have an entirely stable ROM.