I feel like PL had a list of things to adapt in Biodome and I'm leaving those to him because I didn't do any of them.
Here's what we DO get:
A new ruined construction site in space.
Tramstation should be a little less laggy.
The Lance will now properly embed itself really deep into the space station, as intended.
Lavaland and the lowest level of Icebox will now generate randomised (unfriendly) rivers (and chasms to see them from upper levels), which it was supposed to do for 2 years but nobody noticed it had broken.
Fugitives will now be more selective based on available population, meaning we might actually see them sometimes.
PAIs can upload photos to newscasters.
Improved QoL for... slitting throats and stabbing people in the eyes (unless you have the x-card!)
A new space ruin full of meat.
Paper slips made by cutting up paper are now a bit fancier, and functional.
Sleeping with a pillow will heal you a little bit (as with a bedsheet).
Thrown reagent containers which splash their contents on mobs will spill the rest on the floor, instead of sending it to the void.
The "bluespace tag" is no longer diegetic, and contains OOC information instead of trying to crowbar itself into being in character somehow.
A new space ruin based on anomalous research.
The dark matteor event & final objective are now functional. Look out!
Camera consoles on emergency shuttles now function, and many emergency shuttles with said consoles have had cameras added.
Updated maid costume sprites.
A new space ruin based around a mysterious restaurant (thanks PL!)
A special edition manga can be found in the library which gives special properties to spellcasters.
Medical gauze eyepatches can be vended from costume and medical vending machines.
The pizza party lavaland ruin has received a fresh coat of paint.
A new space ruin acting as a waystation and transit hub.
Bleeding wounds no longer clot while you are dead.
Some screentips and shortcuts for atmospherics machines.
Alt-click on thermomachines will now cycle between min, median, and maximum temperatures instead of only doing one of those things.
Cursed stationers should be wary of electrified tram rails.
Malfunctioning AIs will get a discount on the doomsday machine if they hack the APCs of Heads of Staff (or the Vault)
A space ruin representing an abandoned Interdryne laboratory.
Flamethrowers can now be used regardless of the thicknes s of your fingers.
Cargo requisition forms now have more information and are somewhat more consolidated instead of being 19 pieces of useless paper.
If you lose your traitor uplink, you can now craft a new one (thanks Sol!)
As a wizard or xenobiologist you can use uncanny powers to timestop the Supermatter, if you wanted to help prevent a delamination?
A new detective-themed HUD skin.
A new, cheap traitor item which allows you to remotely call the tram at your leisure.
New sprites for most lavaland creatures.
The crew manifest will now be updated after your job is changed on your ID.
I feel like PL had a list of things to adapt in Biodome and I'm leaving those to him because I didn't do any of them. Here's what we DO get: