The new update brought a lot of changes, including but not limited to:
~Added New Chinese Throne Room for Rulers in and around China (More Variants to come)
~1066 Start date now fully playable
~New bookmarks for 867 and 1066
~Added more localization support for English, German, and French
~Minor adjustments to Men-at-Arms
~Added many missing localizations to religions, cultures, titles, etc.
~Added missing character view backgrounds
~Added Spanish Translation

China
~Han Great Wall now ends in the east at the Shanhai Pass
~Added new main menu graphic for Chinese characters
~Added vassals to Song in the 1066 start date ( placeholders for now )
~Added Special Great Wall of China Building to areas along of the Great Wall

Tibet
~Added more holding graphics
Japan
~Nearly 1000 new historical characters added
~Rework to Yamato cultural traditions as well as men-at-arms
~More cultures Added to the Ryukyus
~Update to Shinto localizations together with some minor changes to tenants
~Removed the Emperor as the Shinto head of faith (necessary for future imperial restoration events to work properly)
~Added all of Japan's historical Provinces as counties in-game (Mutsu and Dewa subdivided into various districts)
~Rework to Tohoku, providing more depth and a more historical frontier with the Emishi
~Rework to Hokkaido, doubling the number of playable characters in the area, with additional culture names added for the region
~Rework of Japanese Duchies, including several newly added duchies
~New Coats of Arms for Japanese Duchies
~Various terrain and mapping fixes, including over 50 newly added rivers
~New city holding graphic
~Added new main menu graphic for Japanese characters
~Rework to 867 start date
~Newly fleshed out 1066 start date for Japan with many historically valid characters added

Korea
~Update to Holy Site character modifiers and placements
~Over 50 new baronies and 19 counties added to Korea, providing more strategic depth and greater immersion
~Added de-jure changes to county history, allowing for a more historical administrative layout in both the 867 and 1066 start dates
~Various terrain and mapping fixes, including several newly added rivers, more historically accurate coastlines, and better impassables within Silla
~New holding graphics for Korea
~Rework to 867 and 1066 start date adding many more vassals ( most being placeholders for now )
Southeast Asia
~Many new cultures and religions added to the region
~Rework to the county/duchy layout in Malaya and Maritime Southeast Asia
~Changes to title history throughout the region providing more historical immersion
~Various terrain and mapping fixes, including adding the Muria Strait and an update to province terrain
~Many disabled holy sites have been restored
~New holding graphics in Indochina and Austronesia
~Improvements to Batak Culture and Religion

Culture and History Improvements
~ Muong and Tho cultures added in Northern Vietnam (will get more attention in future updates)
~ Added missing localizations for Vietnamese Dynasties
~ Added missing localizations for Vietnamese Culture names
~ Renamed Annam to Jinghai (name change took place in 866)
~ Created Dynasty and House lists for Vietnamese Rulers to be used in future Vietnam Improvements

Coding Improvements
~ General file cleanup
~ Namelist merge and cleanup
~ Removal of deprecated files
~ Folder Reorganization

Fixes
~Corrected file-paths to various images
~Fixed the Angkorian Architecture Tradition
~Added the Baray Duchy Building for cultures with the Angkorian Architecture Tradition
~Fixed bug were created artifacts were invisible for newly added graphical cultures
~Fixed bug were created artifacts were invisible for newly added graphical cultures
~Nerf to stat bonuses provided by Chinese holy sites
~Fixed bug where Primogeniture succession was applying to rulers without the Great Union Innovation
~Fixed bug where Chinese clothing wasn't properly applying to foreign spouses, causing them to be naked
~Fixed bug where attempting to hybridize with Khmer or Katuic cultures would lead to a CTD
~Fixed bug where inspired Characters wouldn't visit Asia
~Fixed broken, duplicated, or missing innovations throughout Asia