So what are the exact changes?

Yeah I tried on my own to get the game to update district data, to no avail.

Fun thing : I've been able to mod a faction to have ALL the beneficial traits. Seems to work ok (on the UI side it works, I haven't checked all the numbers).

I was trying to. But it seems that it was not loading the update, only the old file with the quests alone, and if I try to make a mod with simply the vanila districts and improvements it will not load.

I am working to see what I can do. If I can, we would have 7 new improvements and 4 new districts. But let me come back at this.

I'm interested in modding districts too. Probably will try something simple to test like making the University uber powerful and playing as Ramses to get it for free at game start and see if it works.

Could you give us a quick rundown of the modifications that you made ?