The file

	diff-1.4.2-to-1.4.3.gz

contains all the changes applied between the NetBSD 1.4.2 and the
NetBSD 1.4.3 releases.

The subdirectories contain:

patches/
	Source patches which fix important problems discovered
	after the release.

security/
	The crypto part of the source code.

sets/
	The normal source sets.