https://community.sophos.com/sophos-xg-firewall/b/blog/posts/sophos-firewall-v18-5-mr3-is-now-available
Release Notes: https://docs.sophos.com/releasenotes/output/en-us/nsg/sf_185_rn.html
"Old" V18.5 MR2 Thread: https://community.sophos.com/sophos-xg-firewall/b/blog/posts/sophos-firewall-v18-5-mr3-is-now-available
I did upgrade to SFOS 18.5.3 MR-3-Build408 on three devices (XG106, XG125, XG135). All of them show the warning that the osquery service is stopped. The warning message sometimes disappears and then comes back, it is flapping.
I confirm the above, in addition, there is sometimes a problem with launching the anti-spam service.
I confirm the same issue. Back to previous version.