= Alpha 21 =

Development started by ​Wildfire Games on april 2nd 2016 (r17966).[[BR]]

The following list highlights the most important changes (more noticable ones first):[[BR]]

== Gameplay & Balancing ==[[BR]]
r17974 owning multiple wonders gives multiple population boni (#3522 #3792)[[BR]]
r18021 technologies can be researched on captured buildings
r17999 defense tower techs don't affect wall-turrets anymore[[BR]]
r17970 reduce wall-tower range from 88m to 72m, increase minimum distance from 3m to 12m[[BR]]
r18008 Corrals: britons, gauls and iberians produce pigs, carthaginians, mauryans and ptolemians produce goats
r18004 dropsites shared by default[[BR]]
r18007 allow sharing/unsharing multiple dropsites simultaneously

== User Interface ==
r18014 Improve selection ring of animals (#3786)

== Petra AI ==
r17971 use corrals with low starting resources[[BR]]

== Engine ==
r17975 cinematic paths: interpolate camera rotation[[BR]]

== Performance Optimizations ==
r18011 slight improvement of flood-fill algorithm of the hierarchical pathfinder