I couldn't find up-to-date release notes for it, i.e. what it fixes.
Many of us are struggling with authentication problems on Powershell monitors (a known problem), as well as issues with AppInsight for AD and IIS monitoring - which requires monitoring to be changed to Agentless per node / or in the template, or make sure 4.8 .Net Framework is installed. The agent tries to install 4.8 but it sometimes fails due to other issues (pending reboots, in-use files, whatever).
What are the fixes in this minor point release?