Release information Find out about NHS Care Identity Service releases. NHS Care Identity Service Authentication - Release 13.1 13 May 2026 NHS Care Identity Service Authentication - Release 12.6 29 April 2026 NHS Care Identity Service Authentication - Release 12.5 15 April 2026 NHS Care Identity Service - Release 12.4 18 March 2026 NHS Care Identity Service - Release 12.3 4 March 2026 NHS Care Identity Service - Release 12.2 11 February 2026 NHS Care Identity Service - Release 12.0 14 January 2026 NHS Care Identity Service - Release 11.11 16 December 2025 NHS Care Identity Service - Release 11.10 3 December 2025 NHS Care Identity Service - Release 11.9 5 November 2025 NHS Care Identity Service - Release 11.8 22 October 2025 NHS Care Identity Service - Release 11.7 1 October 2025 Outage for authentication traffic using TLS 1.0/1.1 18 August 2025 NHS Care Identity Service - Rebuild directories 7 May 2025 Earlier releases Earlier release information is available through The National Archives. Last edited: 11 May 2026 10:52 am