The final release. The game is complete.
Completion of the plot. The climax of the conflict against Nazarov and his crime family. The last attempt to save your father
The true ending and epilogues. Your choices matter! Learn how you and all the other characters ended up based on your decisions.
Bottom surgery. The final surgery in the game and the final step in you feminization journey (if you choose to go through with it). Fully functioning female genitalia (meaning yes, you can get pregnant in the epilogue)

Completion of all sub-plots. Olivia's story. Heather's story. Lexi's story. They're all complete.
A new ending. In addition to the 'true ending' for finishing the game, there is new 'fail-state ending' if you fail to save your father.
New achievements. For the completionists out there.
Lots of text fixes and bug fixes.
v1.01
This hotfix addresses all bugs identified so far. Another hotfix will likely come in the next few days. Lots of 'blank screens' dealt with. People shouldn't be locked out of bottom surgery accidentally anymore (not sure if that's totally fixed yet, though). Lexi's final scene now works. Some broken epilogue screens were fixed. The tesseract and scenes related to it were fixed... lots of fixes, really. Hard to list them all.