There has been an update on the forum software that didn’t go smoothly. I found the bug and I am going to solve it. So the forum will be down for five minutes in 10 minutes from now.
The forum is going down for a few minutes in ten minutes from now, for maintenance.
Maintenance is done.
The forum will be down for maintenance in twenty minutes from now. It will probably take a minute of ten.
The forum will be down for maintenance in 15 minutes.
The forum will be offline for maintenance, shortly in an hour from now.