5504f4e7aacb8e5f2b9229a96cfee5b970e57f0a
The managed config shipped in /etc never reached updated devices: mdatp-firstboot creates /etc/opt/microsoft/mdatp on the device, so ostree's /etc merge treats that directory as local and doesn't add new image files under it. VM 123 had the file in /usr/etc but not in /etc, and Defender kept its defaults. Ship it in /usr/share/mdatp-managed/ and install it into /etc/opt/microsoft/mdatp/managed/ from an ExecStartPre in mdatp.service. This also applies changes from newer images and undoes local edits. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>