Yes, 5.9.1 is in public release, and is the current release version.
https://community.cambiumnetworks.com/t/epmp-software-release-5-9-1-is-now-available/
Yes, 5.9.1 is in public release, and is the current release version.
https://community.cambiumnetworks.com/t/epmp-software-release-5-9-1-is-now-available/