No new features have been included in this maintenance release.
This release fixes an issue with specific data that prevented publishing a new version of a design.
This release fixes an issue with specific data and SECollab parameters that might lead to some very fresh data being excluded from the newly created configuration.
The list of known issues can be found on the known issues page.
There is no specific action to take upon migrating from version 3.0.0. Simply follow the Updating SECollab guidelines.