The mod package is applied to the base game, which overwrites the files in the base game. When an update is pushed out that CHANGES an existing file that is modded, the new update should NOT break the mod, because the mod is overwriting the balance changes.
However, a number of abilities have had their requirements moved to the state trees, which breaks the mods. I am speaking of the monk conversion ability.
I had a mod that allowed monks to use conversion without carrying a relic. However, the new update to rus monks broke the entire mod, because the requirement checks were moved out of the ability package where they belong, and moved into the state tree. ,_,