Every day now carries its own rule, loud rooms can reward the curious, and floors are checked more carefully for contamination you cannot reach.
Daily shifts: Each UTC day has one of seven rules, such as a failing lighting circuit, no heating, supper left out or everything locked away; the rule changes how the floors are laid out or how the contamination is spread, is named in the lobby and stays with a shift you continue
Loud rooms: A room that reads loud can hold nothing, a little salvage, something left behind or a rare stash; the reading never says which
Personal best: Arriving on a floor above your saved best adds BEYOND YOUR BEST to the arrival message, once per run
Missing notices: A badge belonging to a resident on the lobby board is marked ON THE LOBBY BOARD
Exposure report: The report shows how many pill packs were bought from the kiosk during the run
Floor building: Hazard spills and contaminated items sealed in cupboards are now checked for a place you can reach; one that cannot be reached is moved to a clear spot or put out in the open
Surfaces: Bathroom and ceramic floor tiles catch the torch along their grout lines, the carpet has a woven pile, and metal floors, sheet metal, the lead drum and the transformer box show worn paint and scuffed plate
Missing notices: The lobby no longer fails to build when Steam friends are shown and fewer than five are found
Moonlight: Moonbeams through glazed windows no longer show stepped, jagged edges or a dark cross from the window frame