Version 18.0.18 is now available. It includes these updates:

Display and timezone: set your studio's default date format, 12- or 24-hour time, name order and start of week. Customers' own display choices now stay with their account. The timezone picker is easier to search, and your timezone choice stays saved.
Booking: when a date is full, appointment booking offers a button to jump to the next available day. Customers on the new appointment experience can join the waiting list for a full session. Classes now show the correct time booking opens.
Checkout: per-person add-ons chosen from a choose-one list are no longer overcharged. Customers see a clear message when a class is no longer available. Checkout notes made only of numbers no longer break the order confirmation.
Customer accounts: customers can see full pass and payment details, transfer a pass and choose more notifications. Pass details, email history and signed waivers are easier to read in dark mode.
Admin: text typed into admin fields is saved exactly as typed. Kiosk settings keep your latest edits. Admin pages finish loading after you sign in with a login link. Add-on names show exactly as saved when you edit them.
Assistant and sign-up: a Connect on ChatGPT badge is now on your Welcome tour page. The customer assistant recovers earlier conversations after sign-in is renewed. Your assistant's personality shows in your language. Business sign-up no longer wrongly says you signed in on another tab. Opening a new feature update no longer shows a false error.