= Alpha 21 =

Development started by ​Wildfire Games on April 2^nd^ 2016 (r17966).[[BR]]
The most recent revision can be found at http://trac.wildfiregames.com/changeset

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

== Gameplay & Balancing ==
r18024 Make unused buildings and champions available:[[BR]]
       Athen and sparta can build up to two royal stoa and produce sword- and skirmisher-infantry-champions there[[BR]]
       Britons can build a crannog, which is both a civic-center and a dock[[BR]]
       Persians can build halls from which spear- and skirmisher-infantry-champions and war-elephants can be produced[[BR]]
       Romans can build (at most one) Temple of Vesta, persians a gate, which increases the catpure-strength of garrisoned units within 75m of the temple[[BR]]
       Athen, carthaginian, macedonian, roman, spartan and ptolemian wonders are temples, thus heal nearby (60m) and garrisoned units[[BR]]
       Iberian monument can't be captured anymore[[BR]]
r17974 Owning multiple wonders gives multiple population boni (#3522 #3792)[[BR]]
r18021 Technologies can be researched on captured buildings[[BR]]
r18025 Nerf champions:[[BR]]
       Reduce armour by 1-2 levels, rougly 25% more build cost and take twice the time to train[[BR]]
       Researching the tech to build champions from barracks costs 1000 metal[[BR]]
r18037 Increase siege armour by 2 levels, add 50% more health, let them regenerate capture-points and reduce packtime[[BR]]
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[[BR]]
r18004 Dropsites shared by default[[BR]]
r18007 Allow sharing/unsharing multiple dropsites simultaneously[[BR]]

== User Interface ==
r18014 Improve selection ring of animals (#3786)[[BR]]
r18026 Correct team totals for the summary screen[[BR]]
r18031 Link from summary screen to replay[[BR]]

== 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[[BR]]