Patch 1.0.7 has gone live!
This update fixes a couple of bugs, and makes a few changes to the game, three of which are of greater importance.
First, it adds OpenGL support (you can choose it in the options menu), which accelerates graphic rendering and makes the game compatible with the Steam Overlay.
The second more significant change is one done based on player feedback; tech tree restrictions no longer apply to custom games, allowing you to explore the full tech tree in custom scenarios, even without having the complete the quests.
And finally, buildings are now selectable by rectangle, and buildings of the same type can be multi-selected this way (or by clicking on a building twice).
For the full changelog, see the readme.txt file.
[EDIT: Since this update, two significant bugfixes were done, resulting in the release of the 1.0.8 patch]
Happy playing!