Question about Parallels Tools Update on Windows 11 Pro

I am running Windows 11 PRO in a vm with Parallels 19.3.0. How often or when should Parallels update the installation of Parallels Tools? Windows 11 PRO just went through an update (not the security/antivirus ones) and I didn't see an update for Parallels Tools. Is Tools only updated when there is a Parallels update to the main program? I have occasionally did a manual Parallels Tools update through Windows but not sure if that is necessary to do. Thanks.