- Updated non-binding support for Perls to match the policy
of the Perl toolchain (Perls older than 10 years old are
unsupported, with a one-time exception of Perl 5.16). The
intent is not to suddenly drop support for older Perls, but
the Alien-Build team may take advantage of features in
supported Perls that will effectively remove compatability
with unsupported Perls.