Since CNAME inspection blocking was introducted a long time ago, I would have dozens of domains "blocked during CNAME inspection" every day. By simply grepping the logs for "cname inspection" I had many results.
grep -i "cname inspection" pihole.log
Since updating Pihole last week to the newest version, it appears that message now only appears for 1 domain (gstaticadssl.l.google.com). It would previously be dozens of domains each day.
Is CNAME blocking borked since the last update ? Or did the message/log format just change ?