CalendarPA keeps a dated changelog of what changed, in plain language, newest first: https://calendarpa.com/changelog
The 3 newest releases:
Invitees choose how to meet: Booking types can offer several ways to meet, such as a video call, a phone call or meeting in person, and invitees choose one when they book. Offering more than one is Pro and up; meeting at the invitee's address is on every plan.
Bug fixes and improvements: Improvements to deleting booking types and to referral links.
Business Teams: Business plans can now create a team of up to 10 people, including you. Invite members by email, give them roles, and host team booking types together.
Round robin: Agencies and Business Teams can share one-on-one bookings across their members. Each booking goes to an available member, and a reschedule stays with the same person.
Team bundles: Team owners and admins can buy a bundle for their team, and members use it when they book.
Affiliate payouts: Affiliates can add PayPal or Wise payout details in the app and see the status of each payout.
Bug fixes and improvements: Improvements to Zoom connections, billing, recurring series refunds and AdaPA.
Zoom passcodes: The Zoom passcode now appears next to every Zoom link, in emails, calendar events and booking pages, so invitees are never stuck at a passcode prompt.
Workflows: Workflow emails can now include file attachments.
Contacts (Pro and up): Export your contacts to a CSV file from the Contacts page.
Bug fixes and improvements: Improvements to nonprofit pricing and AdaPA.
Older releases are on the changelog page: https://calendarpa.com/changelog