I've tried to summarize what I feel are the most important changes. i.e., left out the typo fixes
Generally, I think we had 4 big changes:
1. An attempt to fix governors and production queues.
2. An attempt to fix corruption. Notice that not only has corruption been reduced, but that police stations now reduce corruption as well.
3. An attempt to fix bugs and rebalance units like privateers. There was no mention at all of SAM or coastal fortresses. Hmmmm. I'm also wondering about fighters on carriers and if that is fixed. Subs got a whole lot better too.
4. An attempt to fix what they feel are exploits, namely building palaces to rush wonders and clearing forests and setting tech to 0 (it can now takes 40 turns instead of 32). Notice that replanting and clearing a forest is nerfed now.
Enhancements/New features:
* Added "Ask for Build Orders after Unit Construction" pref (asks for build orders after every unit construction in all cities).
* Added "Always Start Building Previously Built Unit" pref (cities always start building the last built unit).
* Added "Show Civil Disorder Pop-Up" pref (displays a pop-up whenever a city descends into civil disorder).
* Added "Culturally Linked Starting Locations" (civs are placed on maps in close proximity to other civs of the same culture; please note that not using this pref can lead to sub-optimal arrangements of civ colors)
* Added "Show Our Manual/Our Automatic/Enemy/Friend Moves" preferences
Game changes with positive effects:
* Corruption effects have been reduced.
* Police Stations now reduce corruption in the city they are built in.
* Submarine and Nuclear Submarine now have an offense value of 8.
* Paratroops now have a range of 6.
* Privateer now has an offense value of 2.
* It's slightly easier to culturally acquire cities.
* Cultural priority of AI has been reduced.
Bug fixes:
* Corruption calculations for Communism are now flat for the number-of-cities factor.
* Improved City Governor Performance.
* Precision Bombing now works as intended.
* The AI no longer reacts to submarines that it cannot see.
* Air superiority missions work as intended.
* Once the UN is completed, you are no longer prompted to vote every turn.
* You no longer declare war by accidentally passing over a hidden submarine.
Nerfs/Exploit fixes:
* Shield bonus from clearing forest can only be received once per game.
* Palaces and spaceship parts can only be built in one city.
* The maximum number of turns it can take to research an advance has been increased from 32 to 40.