Tomorrow, crusader kings II will get the 1.10 update.
If you want to keep playing the mod and have a Steam version : Copy your crusader kings II folder (before the update) somewhere else on your hard drive.
If you have a Gamersgate version, do the same so you can enjoy both vanilla with latest DLC and the mod.
From tomorrow we will start working on compatibility, it usually takes a week but this update his HUGE.
If people are interested in the changelog it can be read HERE
Last, next update will contain a new music “stannis themed” lasting more than 5 Mn 😉