This XNAT will be down on 20th August 2025 from 08:00 - 17:00 to upgrade the XNAT version to 1.9.2.1. Details can be found in the 1.9.2.1 Release Notes. Please refrain from uploading and downloading data during the defined downtime period as the XNAT instances will become intermittently inaccessible. Any existing connections to the instances will also get interrupted.

For more info please refer to your emails or contact arc.medical-imaging@ucl.ac.uk