It can be downloaded from
the Proportions web page.
This is mainly a "fix-it" patch, with some nice improvements that don't really alter balance.
I recommend the new Tri-Polar quadrant type for new games (multi-player or vs. the AI).
In 2.2 I may change some of the facility values a bit, in particular the Solar Generator. I haven't finished reflecting on what I think would be best for those, and if I want to tweak others or not.
If there are players still running pre-2.0 games who are eager to get 1.6 (since they can't upgrade to 2.x), let me know.
Version 2.1:
* Corrected typos in Heavy Ship Mount.
* Fixed display problem with Psychic Eavesdropping and with
Industrial Sabotage.
* Adjusted costs of Economic Disruption and Resource Procurement,
and added another level called Economic Sabotage.
* Increased cost and reduced the effect of Food Contamination.
* Increased cost of Ground Contamination and Weather Disruptions,
and added other tech level requirements besides Applied Intel.
* Added a couple of advanced ship bombs to intel ops.
* Added Oleg's AI_General files to help the AI choose racial traits
more effectively in Proportions.
* Tweaked Abbidon AI_General file to make them choose racial traits
and characteristics even more effectively. Others will be tweaked
more in later Versions.
* Added Tri-Polar, Tri-Polar (Wide), and Strands system types. Tri-
Polar is the new recommended default.
* Added and adjusted values for terrain - storms and warp points
in particular now have more varied effects, especially in damage
amounts. This only affects newly-generated quadrants.
* Added some random events.
* Changed base max number of systems in a quadrant to 130. This can
be changed to players' tastes (up to 255) in settings.txt.
* Changed seeker damage resistance of light missiles, but I don't
think this currently has any effect on any existing PD weapons.
* Corrected cosmetic typo in Weapons Platform Command Centers.