Unit Templates are now available if you own either the Art of War or the Cradle of Civilization DLC.

Subunits not matching the Template will be detached into a separate unit and missing subunits will be built, move to and merge with the original unit until it matches the Template.

Unit View - Conform To Template: You can now select an Army/Navy Template from a list that the unit will conform to.

It is now possible to send missionaries to your Subjects' provinces, converting provinces to their religion.

Advisors can now be promoted up to level 5 for a cost, if they are of a promoted/same-group culture.

Ottomans Government can assign Pashas to States.

Iqtas can now set their Taxation Policies.

Feudal Theocracy added with unique abilities: Seize Clerical Holdings, Invite Minorities and Sanction Holy War.

Added Tribal Allegiance for Tribal Federations, allowing a passive bonus and use of interactions.

Mamluk Government Rulers now get their Claim based on the percentage of their culture in State Cores.

The Mamluk Government will be able to select their new ruler from several accepted cultures and use interactions based on that culture.Muslim countries can now benefit from their Mysticism and Legalism and progress back towards the middle.Muslim nations can invite Scholars from other schools.Generals in charge of drilling armies now can gain additional pips in Fire, Shock, Maneuver and Siege. You can now Drill your armies to make them better in Combat and to gain Army Professionalism.You can now slacken recruitment standards to give up some Army Professionalism for Manpower.Unit View now changes based on your Army Professionalism level.Added Professionalism abilities: Supply Depot, Refill Garrison, restore manpower, half price generals and reduced reserves morale damage.You can now select your Trading Policy in Trade Nodes where you have a merchant present.The patch was released alongside the Cradle of Civilization DLC.

Patch 1.23, aka 'Persia', was released on with the checksum 1b5e.

Extended timeline eu4 1.23