Just reporting my experience upgrading BigFix to version 10.0.9-
Today I upgraded our BigFix infrastructure from version 10.0.4 to version 10.0.9, and it was rife with issues for the master, console, relays, and clients.
I upgraded our other BigFix infrastructure from 10.0.4 to 10.0.8 last month, and it went without a hitch, save for a problem with download certificates and a problem with WebUI NMO’s ability to take action.
Error -1: MS Visual C++ failure, it was auto fixed when I initiated another run with my NT ID.

Error -2: MS ODBC Driver 17 Failure - I was able to fix it by upgrading our SSMS from 18.X to 19.X

Error -3: Console & Client installer was not able to copy masthead during upgrade - Once I click OK it just proceesed further but failed to start the client so had to manually copy the masthead for both console & client.

Error -4: BESClient installer was failed to update - to resolve this had to uninstall client & relay completely.

Error -5: BESRelay failed to install, had to remove BESClient & BESClient helper to fix the issue.

Error -6: Auto BESRelay upgrade ended with weird exit code on multiple relays - still under investigation.
