Most notable were fixes for the three unatainable achievements (Adventure Story Gold, War Story Gold and Eight Port Master) which will add an additional 60 pts to your gamerscore once completed.
Below is the complete list:
Main Game:
1. Correct achievements are awarded when upgrading from trial version
2. Gold medal times in Adventure Story are achievable
3. 8-Port-Challenge Gold Medal time is achievable
4. Other gold medal times adjusted (I need to look up the details on this).
5. All achievements are therefore possible
6. All expansions are correctly transparent when powered off
7. Leaderboard rank is shown cleanly in leaderboards
Love Story:
1. Gifts have the proper effect
2. Marrying Wraeth is possible
3. Adjusted house settings have the proper effect and don't crash the game
4. Blenda ending shows correct text
Known remaining issues:
"The Infamous Repair Glitch"
(this was intentionally not changed, as it would have implied a required leaderboard reset)