Well, dear folks,
U r probably at version 2.2.1.
The current undergoing development is 2.3 - Development.
Its not yet stable and many bugs to be squashed. So wait for it.
It will change in the ways UFOs are handled, with TONS more features.
There is no more development / changes that will be made to v 2.2.1. So sorry abt tat.
As for the viral infections, look out for it in 2.3 too. Many more of the storyline and stuff should be released on 2.3.
So tat should be more good news for u all! Toodles.
PS: If u r interested in taking a peek at 2.3 and dun mind the bugs (for now), try out the downloads for the SVNs i compiled.