Forum upgrade [Now complete]
A minor forum software update is likely to be installed today. This will result in a short period of downtime whilst the software is upgraded.
I will post a further update once the upgrade is complete or if timing is delayed.
UPDATE: The forum update is now complete albeit it seems that the navigation menus in the header bar are missing. I will look into this tomorrow.
UPDATE 2: The navigation menu in the forum is now back up and running.