We released an update to GCSv5 this morning.
CHANGELOG
Support for user_message and user_message_link in GCSv5.4 collections
Add functionality to disable https for collections on managed GCSv5.4 endpoints.
For informational purposes, we now publish any case where an identity provider has required Globus to reset the persistent identifier for their user. The information can be found here: https://docs.globus.org/security/provider_specific_identifier_resets/
Please contact sup...@globus.org or send mail to the listhost if you have any questions or concerns.