3.2.0 is a full install. A previous installation of Fleet Operations or Armada II is NOT required. An incremental patch from earlier versions of Fleet Operations is not available.
On the technical side we got another cool feature I have posted about in length. Many of the core file functions of Armada have been rewritten.
In combination with a new 'archive system' for object definition files, this gives a significant decrease in overall loading times. Additionally this rewrite allows the use of Modification Modules that give modders the possibility to create nonintrusive game modifications that are easy for the player to use and switch between. We are currently in the process of expanding the modding section of the Fleet Operations guide accordingly.