Project P.I.T.T. Panel Rack
The official 1.0.5–1.0.7 Panel Rack changes: multi-panel carrying, dedicated controls, interact-key binding and automatic dispense.
The Panel Rack was added in Update 1.0.5 as a multi-level carrying upgrade. Update 1.0.6 added its own keybind and deliberate dispensing; Update 1.0.7 adds interaction-key binding and an automatic-dispense option.

1.0.5: carrying multiple panels
The official 1.0.5 notes describe Panel Rack as a new upgrade with multiple levels to carry more than one panel at a time. The notes do not publish its price, exact tiers or unlock condition.
1.0.6: dedicated use behavior
The official 1.0.6 notes say Panel Rack has its own keybind and will not automatically dispense another panel. Press its control again when another panel is needed.
1.0.7: interaction and automatic dispense
The official 1.0.7 notes say the Rack can be bound to the general interaction key and add an option to dispense panels automatically. The notes still do not publish price, tier values or unlock conditions.
Unknown unlock condition
DEFERRED — EVIDENCE INSUFFICIENT. Community theories about when or how the Rack appears are not presented as official progression data.
Primary source: Official Steam announcements — dated patch archive ↗. Scope: full game.
A source-check date is not an in-game test date. Historical fixes and community observations retain their stated scope.