+* optional Cache::FastMmap support so production deployments won't
+ need Varnish (Varnish doesn't protect NNTP, either)
+
+* dogfood and take advantage of new kernel APIs (while maintaining
+ portability to older Linux, free BSDs and maybe Hurd).
+
+* dogfood latest Xapian, Perl5, SQLite, git and various modules to
+ ensure things continue working as they should (or more better)
+ while retaining compatibility with old versions.