OldOldStable has 0.102.4+dfsg-0+deb9u2. This should be updated to the
103 series. I want to upload 103.4 to old-stable/stable but didn't find
the time yet.
The problem with the 102 series that it is getting EOL soon. See
https://docs.clamav.net/faq/faq-eol.html#version-support-matrix
Older (non-supported) version are already blocked from db-updates. There
will be probably an announcement on upstream side.
Sebastian