Here's a quote from build/README which says my next step in the release process
is to ask you all if you have to do whatever this says has to be done.
So I'm asking...
Confirm with SpamAssassin SysAdmins group that we are ready in DNS for
masscheck and rule updates for the next version
For many years all releases since 3.3.3 use the same ruleset.
3.4.2 already has a cname for this.
3.3.2 and before are set to a static ruleset.
We have been good on using version specific and plugin conditions to
allow one ruleset to rule them all.
Since we plan to release rules that continue to be version compatible
back to 3.3.3, only a CNAME is needed for newer releases to point at
3.3.3.
