The Thinite update is not yet finished. But in the meantime you can have access to its beta in the Beta area of the Settings via Steam !
Here a list of some of the new things in this beta for the moment:
-26 new events around the unification of Egypt and after it
-the 2950BC startdate with the coming 1st Civil War of Horus and Set(which can also be played if you begin in 3100BC or play as Upper Egypt in 3250BC or Nekhen in 3400BC and move your capital at Abdjou). The civil war should work as intended, but the testing have not yet been done fully on if all the events happen. They should, but we need confirmation.
-5 new techniques, one for each area, giving you even more choice for technologies
-and of course many changes in balancing of gameplay, bugfixes and betterment of the UI
The Thinite update when its finished will have all that and many more things, mainly:
-the 2800BC startdate with the coming of the 2nd Civil War of Horus and Set(which will be also playable at the same conditions than the 1st)
-events between the two civil wars
-more events between the unification of Egypt
The full update should come in the next weeks, in the meantime, test the beta and give us your opinion on it about bugs and balancing on the Discord !
Stay tuned !