Upgrade nxagent to 3.5.99.27

Ubuntu Version: LUbuntu 22.04 LTS

Problem Description: Want to update nxagent to newer version
I have a problem with X2Go clipboard handling and the X2Go team have suggested that I need to update nxagent to 3.5.99.27 (from 26-5 which is what comes with Jammy).

I think the term backports applies as I know 24.04 has the later version.

How do I get this later version install on my system please?

Thanks
David