# \[IGN-9275\] OPC UA client X509 authentication **URL:** \ **Category:** Ignition 8.3 Early Access\ **Created:** [June 18, 2025, 8:35am UTC](https://forum.inductiveautomation.com/t/ign-9275-opc-ua-client-x509-authentication/107512 "2025-06-18T08:35:34Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![gnguyen](https://avatars.discourse-cdn.com/v4/letter/g/41988e/32.png) [@gnguyen](https://forum.inductiveautomation.com/u/gnguyen)\ **Post date:** [June 18, 2025, 8:35am UTC](https://forum.inductiveautomation.com/t/ign-9275-opc-ua-client-x509-authentication/107512/1 "2025-06-18T08:35:34Z")
Hi, I'm trying to find out if 8.3 will have client authentication by cert? It seems no at this stage of the build, but in the roadmap? Thanks ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [June 18, 2025, 10:55am UTC](https://forum.inductiveautomation.com/t/ign-9275-opc-ua-client-x509-authentication/107512/2 "2025-06-18T10:55:50Z")
I'll make sure there's at least a ticket for it... This is already fully supported by Milo (OPC UA SDK). I would guess implementing it in Ignition would be 90% an exercise for frontend/design to figure out how this fits into an OPC UA connection configuration UI workflow. Unfortunately frontend is by far the most impacted/backlogged area right now, so I couldn't even guess when something like this would become a priority to work on... ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [September 11, 2025, 1:42pm UTC](https://forum.inductiveautomation.com/t/ign-9275-opc-ua-client-x509-authentication/107512/3 "2025-09-11T13:42:03Z")
This has been implemented and it's sitting in a long queue of work targeting 8.3.1.