I registered just to ask why you're not trumpeting the fact that the core ship balance has changed. I casually loaded up my 2.0 savegame and had no idea until I saw things weren't dying as planned and checked the Strong/Weak Vs. notes.
It's hidden in the middle of the changelog!
Sorry, we put it right on the front page of the changes in our update notice. Steam apparently didn't include the full list, there.
It should be okay to convert a save game like that, right? I noticed a few oddities like ships at half health, I assume because they got a boost. Also, my game seems oddly quiet now with fewer random raids but maybe that's from something I did in the campaign? (Killed a special forces post maybe.) Probably imagining things but wanted to check that it wasn't broken before I get too far into it.
Yep, you can upgrade just fine. I still have some pre-beta versions from April 2009 that I load up to make sure they still work. You'll find a few oddities such as ships at lower health due to their increased values, or ships that have gotten larger overlapping adjoining ships, or things like that. There are fewer Cross-Planet Attacks in the new versions (due to popular request), but that refers just to the announced CPAs - special forces are just the same as ever. I am suspecting that perhaps it is just coincidental, with the destruction of a key special forces post, as you say. Anyway, you should be good to go!