Release notes 8.2.1

Version 8.2.1 of the Oxford Mosaic platform was released on 22 April 2026.

Further information

• Site now publishes a security.txt file for reporting vulnerabilities or security concerns.
• Added Mosaic HeroDevs SMTP authentication support.
• High severity security updates for Mosaic React Renderer. 

• Moderately Critical Security update for Captcha module.

Small print

This release comprises:

• sprint: TT26 Sprint 2
• backlog items: 115279, 112056, 116256, 115962
• bugs: N/A