temBoard UI 6.0 is compatible with agent 5.X. Still, we suggest you to upgrade agents to 6.0.
sudo systemctl stop temboard
Update temboard package with your preferred installation method.
The database structure hasn't changed in this release, however temBoard now requires to version the schema and checks it at startup. This will ease future updates a lot.
repository database schema must be stamped to the latest version with:
$ temboard-migratedb stamp
sudo systemctl start temboard