The details can be found in this technical briefing document. The fix will be deployed in to the HEP 2 test environment on 18 February and HEP 1 on 23 February.
The fix will be deployed in our production environment on Wednesday 2 March. There will be no impact to service while the work takes place.
If you have any questions, please contact the Service Delivery Management (Technical) team on sdmt@ucas.ac.uk.