Current Version
ESS V3.13.0
The Access Group Notification of ESS Update 3.13.0
Notice 13 August 2026
What’s in ESS v3.13.0
Improved security, with enhancements identified and implemented as part of our ongoing security testing and improvement programme.
These enhancements affect the system back end; there are no changes to the ESS user interface. You can continue to access and use ESS in the same way you did before.
Note: If you experience a blank screen when you sign into ESS after the upgrade, see A Blank Screen appears when logging in to ESS.
Review the links below for more information on WebAPI and MCS:
Release Notes
ESS v3.13.0 Release Notes can be found in ESS via Settings on the What’s New page. You can also access release notes for previous versions.
Only users with an Administrator role will have Settings and the What's New page.
