Update: The upgrade is now done. All seems to have gone well, but it can be a good idea to check your jobs.
We will upgrade the queue system (Slurm) on Fram at 11:00 today, from version 17.11 to 18.08. The upgrade is expected to take 5-10 minutes. During that time, queue system commands (squeue, sbatch, etc.) will not work, but running jobs should not be affected.