2.4.1 "Legacy" Update
Adds four new 3D Models, a Character Interaction to represent Greco-Roman rethoric traditions and a new event chain that allows you to depict your court in an artwork however you please.
Also includes some minor changes to art and localization.

2.4 "A World's Desire" Update
Adds a Patronage Dynasty Legacy, which lets you transform a city into the greatest metropolis of the world, the footprint of your Dynasty's deeds and stories. Unlocks the Embellish a City chain of decisions and events, as well as the option to send your antiquarian to a Famed City. Adds a 3D Model of Constantinople and various fixes and flavour.

2.3.1 "Robe Hotfix"
Doesn't change virtually anything. Just a compatch to make it completely compatible with Robe 1.8

2.3 "Vitruvius Update"
A reconstruction from the ground up of the core philosophy behind the project. Rework of the Art Styles system with the addition of Aesthetic Traditions and of the buildings, now divided between secular and religious. Several new 3D models of unique landmarks. Rebalancing and bug fixes.

2.2 "Arno Patch"
A small update centred around Italy. It adds a cultural tradition on the poetic tradition of Tuscany along with a related decision to sponsor a Stilnovista. It also brings along two new special buildings, the Castel del Monte and San Vitale of Ravenna, both equipped with gorgeous 3D models. A few bugs have also been removed and the code should be significantly leaner and faster.

2.1.1 "Brabantine Hotfix"
Small fix to Brabantine Gothic buildings' trigger. In addition to Visigothic, also Galician, Asturleonese and Castilian cultures start out with the Mozarabic Art innovation already discovered