update zoom universal plug in due to zoom app update on image

We want to update zoom on our citrix image but WMS does not show that latest Zoom Universal Plugin. 

Dell optiplex 3000 thin Client
Dell ThinOS 2508 (2508_10.0161)

Want to update zoom to 6.5.12. Current is 6.4.11. Need to universal plug to work properly within our environment.  Don't see it in the downloads on the support side either.

Any thoughts? Was told need to update ThinOS 2511 but that is for  ThinOS 9