Key changes are:
Support for Persians
Revamped defence system supoprting groups of attackers
Dynamic priorities based on enemy strength and number of workers
Better placement of towers and fortresses
Randomised raiding in early game
This was SVN commit r10755.
Enable SpiderMonkey method JIT in Release mode.
Add Engine.ProfileStart/Engine.ProfileStop functions for scripts.
Fix AI to clone initial entity data and shared metadata.
This was SVN commit r9003.