Changes to Update a ticket

added the optional property channel to the response with the 200 status

added update_ticket_request to the request body allOf list

the request's body type changed from object to no type

removed the request property admin_id

removed the request property assignee_id

removed the request property company_id

removed the request property is_shared

removed the request property open

removed the request property snoozed_until

removed the request property ticket_attributes

removed the request property ticket_state_id

added the new optional request property skip_notifications