Is there a list of URF changes somewhere?

As I'm sure everyone has noticed, there are quite a few specific to URF balance changes (stuff like Ryze and Taric's passive, Kassadin's ult etc.) and I wish to know them all, cause curiosity.

What I do know:

You can level past 18, getting your per-level stats. If there's a cap, I don't know what it is.

Karma's passive reduces Mantra by less Kassadin's ult is on a 3/2/1 cooldown and doesn't stack Ryze's passive is .25 seconds per spell Taric's passive is .5 seconds per proc (the spam is real!)

Add to the list yo!