I'm enjoying the new update, though I probably should digest the contents a little slower to see more of additional details added; though the simulator was something I used a lot and it's great to be able to test your ships against those you have already defeated. I generally use mostly high tech and I found a derelict Anubis to fix up and repair and they seem pretty fun to add to my fleet (though I'm not that familiar with the ship as it's so new). The Tempest cooldown reduction on terminator drones makes them very good, though I still wish they wouldn't fire them off as frequently as they do, as sometimes having solid point defense is more important to deal with missiles rather than finish off an enemy ship; in any case they are very formidible with level 7 officers.
Unfortunately, it seems I've misplaced my Cryoarithmetic engine (It's under my fleet log in the intel screen, over 6 cycles ago when I obtained it)...My guess is I used the newly discovered (well by me) hold alt to transfer what is under the mouse to accidently sell it without realizing it, though it could possibly be a bug.
Not sure if it's the best idea, but perhaps the codex entry under fleet log when clicked on could tell you the system obtained, and where it is installed or where it was sold, or where it was accidently discarded into space somewhere. I guess though the codex entries only come up once so it would get messy tracking all the different versions of the item...maybe a confirmation prompt when you are about to discard/sell important colony items would suffice (well if you are as clumsy as me!).