Changes, as filed:

• Co-op: everyone at the table can now see everyone else. Cursors and pings were reaching only the host over Steam; the host forwards them properly now, and a colleague's marker shows the piece they have in hand.
• Opening the menu no longer stops the world for the rest of the table. Space still pauses for everybody, which is deliberate.
• Invitations work mid-game. A friend who accepts is set down in the running world, and the line is held still while they board.
• A contested stretch of track goes to whichever train wanted it first. It previously went to whichever was purchased first, which the bank concedes was arbitrary.
• Trains may be named. "Coal run" reads better than "Train 7".
• Demolition removes the rail you are pointing at, rather than the entire junction.
• Signal blocks are visible while placing signals, including both sides of a signal that already exists.
• A leg of a line with no route is drawn as a dashed gap instead of quietly omitted.
• Right-drag moves the map. A right-click still cancels.
• Photo mode on F9: every panel, label and marker steps aside.
• Goods carry icons throughout, and station stock arrives as actual piles.
• Validity colours are teal and vermillion, legible to every eye.
• Save as, with a name field, and the full shelf of saves in the lobby.
• The tutorial's sawmill step no longer refuses every hex it is offered.
• Steam Deck touch controls no longer give out after a while. The analog sticks remain under investigation.

The bank trusts these prove satisfactory.