Introduction
The new SACT data set v4.0 went LIVE on the 1st April 2026, and a new section for the updated data set documentation was launched to support this release and available below, including live links to the following key documentation:
- SACT data set (pdf version) v4.0.2
- SACT user guide (html version) v4.0.2
- SACT technical guide (html version) v4.0.2
- link to the NHSE main ISN website, for all other documents
Please work with your local IT or software systems supplier to get your systems upgraded to the new version.
If you have any queries or requests for further information, please contact your regional data liaison manager.
Last edited: 5 May 2026 12:02 pm