We're getting questions on whether we still support Red Hat 5, etc. And while yes, we still work with it, people are encountering issues with group policy, etc.
I'd like to see our supported platforms updated more frequently so when an OS is no longer supported, it doesn't stay in our docs years after the event, such as Red Hat/CentOS 5.
The portfolio have taken a decision to not support operating systems that the vendor does not support. Please refer to the supported platforms page. https://www.beyondtrust.com/docs/ad-bridge/getting-started/supported-platforms/index.htm