ZKGBAI 0.6 "Paladin"
0.6 doesn't add any new factories (as was planned) but it does bring a number of improvements to general intelligence. Raiders and squads now have suicide prevention which greatly improves survivability and performance vs heavies. Measures against factories getting stuck or blocking mexes has been improved, and it also defends better against early raiding. It now builds pylons somewhat earlier and with higher priority so that grids are built much faster and more reliably.
Factories have also been tuned for stronger play overall, and map-specific behavior has been improved for most of the common bad cases (although there are still definitely bad cases). It also now builds up to four factories (instead of three) and striders may be built as early as the second fac, but are only guaranteed if it doesn't have a hub by its fourth fac.
General performance has also been improved somewhat. It should now be possible to run more than one instance without it eating all your CPU.