Workboards got even fancier, and repository callsigns are now optional.
Callsigns: Now Optional
Repository callsigns are now optional. They are no longer required when creating new repositories, and can be removed from existing repositories (although old URIs which include the callsigns will also stop working). You can find additional discussion on callsigns in T4245.
At some point in the future, repositories will also get more readable URIs if they have a "Short Name" configured, but this may not happen immediately. Until then, repositories with no callsigns have ID-based URIs.
Workboard Background Colors
Now this is a good feature:
Just look at all these colors!