So I am way in..turn 384 with an immense universe and all the races. And......I am stuck
It's not a complete crash, so I cannot send in any bug reports, but the game freezes when battle and planetary invasion screens should be displayed (I can still hear the sound effects).And the only option is to kill it in the task manager (memory usage about 3800 Mb of my 8 Gb machine) and hope that it will get better after a reboot and reload
Also I noticed turns are becoming considerably slower when I get into this phase of the game.
Besides that......sigh..I'm really loving a lot of the things in. At first I cursed at the excluding tech tree, but it does improve the need for diplomacy. Also the AI has by far improved, although I still had some stupid Altarian Colony Ships which colonised planets deep into my influenced sphere (which turned and revolted in about 10-12 turns) and is far more agressive.