the documentation is updated, this file is reduced to a short list.
+Version 4.74
+------------
+
+ 1. Exim now supports loading some lookup types at run-time, using your
+ platform's dlopen() functionality. This has limited platform support
+ and the intention is not to support every variant, it's limited to
+ dlopen(). This permits the main Exim binary to not be linked against
+ all the libraries needed for all the lookup types.
+
+
Version 4.73
------------