To switch to the test branch, right click Old World in Steam and select Properties, open the Game Versions & Betas tab and select 'test' in the version list.
Priest specialists increase happiness by 1/2/3 (from 1/1.5/2) and religion opinion by 2/4/6 (from 1/2/3)
Bishop specialists increase religion opinion by 3/6/9 (from 1/2/3)
Schemers can be Ambassadors and Chancellors in addition to Spymasters and Agents
In team games where one player has a tribal alliance, tribes are less likely to demand tribute from non-allied teammates
Huns won't ask for tribute before turn 20 or repeat demands until at least 10 turns after first being met (Empires of the Indus)
Added modsets functionality to mods screen, to allow grouping mods that can all be enabled at once
Increased visibility of attack range outline for ranged units
Added Urban to map pin options
Improved color selection for High Contrast Player Colors option
Luxury/source helptext improvements
Updated Discord channel helptext on MP join screen
Added tech path history to saves. Not shown in-game, for use by community save analyzers
Added Disable SRP Batcher troubleshooting option
Fixed characters sometimes showing wrong nation color with high contrast option enabled
Fixed event kills not advancing/routing when they should
Fixed tribe killing goal getting invalidated too early in some cases
Fixed duplicate floating text in some cases
Fixed Buy Yields text on Road ping tooltip
Fixed resource overlay and harvested icons overlaying each other when both are present
Fixed unit widget healthbars rendering behind resource overlay
Fixed character portrait interpolation settings (Tamil Male 05 and Rome Female 11)
Fixed occurrences that reduce vegetation pillaging and destroying improvements by that mechanic (Wrath of Gods)