Description of problem: my /etc/squid/squid.conf, created for 2.6STABLE16 or something no longer works with current 3.0STABLE After a tedious elimination, I found out that the "acl all" definition, which used to be obligatory, now indices the error (or WARNING). (No, the actual text of the warning does not help at all; moreover, it does not give any line number.) Please patch the new release so that it swallows this without complains. Please verify that new squid rpm works silently and correctly with the default config file distributed with squid-2.6.
Sorry about this, but squid 3 is largely rewritten and is probably not meant to be fully backward compatible. Thus closing as NOTABUG.