But there are also other things beside battlescape. I'm not sure if research & manufacture are finished yet?
They are finshed, but they depend on other parts which still aren't ready. For example, after a ufo mission, alien items aren't added to your base inventory, so you can't research those items(alien alloy, ...). Another example is the laser weapons. You can research and produce laser pistol/rifle, but you can't equip your craft with them. And even if you do(by editing a savegame for example), they aren't fully usable on battlescape(limited ammo).
I already have fixed the second one, but I don't think that Daiky hadn't have time to review it.