3. Updates to the GameEventData.gameventdata file.
To be honest I've never touched this file, so I'm not sure exactly what's changed. If its not in your mod, you probably don't need to worry about it, if it is, tell us what changed.
Between the sections for GameEventDef:ColonizePlanetBlockedByEnemyStarBase and GameEventDef:PirateFleetArrived
Hope that helps.
7. Update to the GalaxyRandomizer.window file.
I doubt many people have changed this either, but if you did, you might want to make sure it still works with the new file.
The moveAreaRadius & hyperspaceExitRadius values in the newStarTemplate section of type "RandomStar" have been removed, so this section now looks like