New toolbar UI

Hello Team How I can implement new toolbar UI in my existing self hosted Jitsi meet??

Update to latest from stable.

I was installed jitsi yesterday but not able to se new toolbar UI??

Is this a new server or did you apply a new installation to your old server?

On old server

Then you may have a repo key issue. What is the output for

dpkg -l "jitsi-*"

this the output for the same

This is the old stable. It seems that it is not upgraded

How can upgrade it??