This weekend our system operations team will be performing a database upgrade (to both the back end and to the connectivity routing).
While the impact of this outage should only be brief (a few mins) we're allocating a 60 minute window just to be sure (this isn't the kind of thing you should ever rush).
The outage period will be on Friday 13th of Jan or Saturday 14th of Jan depending on your timezone:
We'll post updates during the outage to our @accelostatus Twitter account, and if you've got any questions about this, please email [email protected].