Patches
Each version is the game data diffed against the one before it, then reconciled against the official Combat Balance Changes thread. The number worth reading is not how much changed — it is how much of what changed nobody wrote down.
Dragonfire Update32.000.1
611 entities changed · 56% of them documented in the balance thread
270 undocumented changesRadiant Wilds Patch 431.040.1
25 entities changed · 8% of them documented in the balance thread
23 undocumented changesRadiant Wilds Patch 331.030.1
79 entities changed · 20% of them documented in the balance thread
63 undocumented changes