There's no theme to these updates beyond "making things better":

• MAJOR: we are now enforcing required custom vehicle questions when registering. It was previously required when editing a vehicle, but now if an attendee is missing a valid answer, they will be forced to correct it before registering.
• Attendees sometimes contact us unable to register because they don't see the Continue button below the fold. We now have an always visible button to shepherd them to your events.
• Occasionally attendees create organizer accounts when looking for events so we made minor navigation and button language changes to direct them to the right place.
• Improved email generation to support backslash and double-quotes in the from, to and reply-to names.
• Minor performance improvement to querying for reserved numbers for a profile

• Event accidentally configured to start and end more than a year apart will now appear it in your admin event list for editing.
• Made email system more resilient to invalid email addresses so it will not cause a campaign to fail.
• Fix form validation for date fields in Firefox