Jobs now have a start and end time as shown here:
These will now flow through to the Calendar, as shown here:
The popup bubble has also been improved to show the calendar details better:
You can disable Job times by changing the advanced field job_show_times from 1 to 0
New permissions under User Roles are here:
If it is set to “Only from Customers or assigned items” (the default) then it will only show Calendar entries from Customers you have access to, or Calendar entries that are assigned to you as a staff member.