UK federation News

Shibboleth IdP 4.1.4 / Jetty v9.4.39 known issue with high CPU usage

Posted on Thursday, 27 January 2022

We've become aware of an issue with Jetty version 9.4.39 where some deployers of this version are experiencing unexplained high CPU usage which, in some cases, causes the service to become unusable.

We believe this applies to deployers of:

  • Shibboleth Identity Provider v4.1.4 using Windows MSI and the bundled Jetty
  • Other platforms (such as Linux) using Jetty 9.4.39

Other versions of Jetty may be affected.

If you have any queries about this recommendation, please contact

read more... Edited by MatthewSlowe

Update to UK federation Rules of Membership

Posted on Friday, 14 January 2022

The UK federation has revised the Rules of Membership to reflect the introduction of charging for Service Provider members effective from January 1st 2022.

The revised rules can be found here:

read more... Edited by SteveGlover

Removal of triple scope and UKFederationMember elements from UK federation metadata aggregate publications

Posted on Monday, 1 November 2021

We are implementing today some planned changes to a few aspects of the UK federation's metadata which were announced in August (2021-08-25-new-federation-documents) and reproduced below.

These changes are not expected to cause operational issues however if any issues do arise, please contact our Support Desk (FedSupport) as usual.

read more... Edited by MatthewSlowe

MDQ metadata increasing to 21 days validity

Posted on Wednesday, 1 September 2021

On 1 September, we will be increasing the validity period of metadata from the MDQ service from 14 days to 21 days, to provide more resilience and to bring it in line with our metadata aggregate. If you are using the MDQ service, you should ensure that your deployment is configured to accept metadata with this validity period.

read more... Edited by JonAgland

New releases of federation documents and timeline for removal of features

Posted on Wednesday, 25 August 2021

We are pleased to announce that new versions of the FTS (Federation Technical Specifications) and TRP (Technical Recommendations for Participants) have been published at This is the first revision since 2014. It announces a new service and provides a timeline for removal of features that have reached their end-of-life.

read more... Edited by AlexStuart