"After a little less than two months of beta testing, Red Hat
Enterprise Linux 5.7 is now generally available.
RHEL 5.7 hit public beta status at the end of May, and isn't
just about bug fixes and driver support. RHEL 5.7 also introduces
some new features to RHEL 5.x even as Red Hat pushes and promotes
the newer RHEL 6.x branch.
From my perspective the inclusion of OpenSCAP for security is
the biggest new feature. OpenSCAP started off (like many RHEL
features) as a Fedora feature. Fedora 14 in October of 2010 was the
first to include it, providing a way for enterprises to ensure that
systems are kept updated and properly configured to prevent