How to update? And is there any changelog for 1.7.4?

Hi, how can i upgrade my cyberpanel to latest version? currently using 1.7.3.
and is there any changelog available for the latest release?
is it necessary to upgrade?
Using CentOS

You should 02 - Upgrading CyberPanel - 01 - Install/Upgrade - CyberPanel Community… Dont forget to take a snapshot/backup…