12. Expansion item ${authresults {<machine>}} for creating an
Authentication-Results: header.
+13. EXPERIMENTAL_ARC. See the experimental.spec file.
+
+14: A dane:fail event, intended to facilitate reporting.
+
+15. "Lightweight" support for Redis Cluster. Requires redis_servers list to
+ contain all the servers in the cluster, all of which must be reachable from
+ the running exim instance. If the cluster has master/slave replication, the
+ list must contain all the master and slave servers.
+
Version 4.90
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