3821.	[contrib]	Added a new "mysqldyn" DLZ module with dynamic
			update and transaction support. Thanks to Marty
			Lee for the contribution. [RT #35656]

3820.	[func]		The DLZ API doesn't pass the database version to
			the lookup() function; this can cause DLZ modules
			that allow dynamic updates to mishandle prerequisite
			checks. This has been corrected by adding a
			'dbversion' field to the dns_clientinfo_t
			structure. [RT #35656]