A new Azure AD Connect version, 2.0.91, is available for download and install. This is version is not available for auto upgrade.
This version updates the version of the Azure AD Connect Health agent to version 3.2.1823.12 to provide compliance with Federal Information Processing Standard (https://www.nist.gov/standardsgov/compliance-faqs-federal-information-processing-standards-fips).
You can download it from https://www.microsoft.com/en-us/download/details.aspx?id=47594.