According to additional coverage of the release at InternetNews, RHEL 5.3 includes the following Vista-oriented updates and fixes:

• Updates and improvements to the built-in Samba environment, which provides support for the Server Message Block (SMB) protocol used for Microsoft network file access and other communications.
• Updates to the Common Internet File System support in RHEL 5.3, so that Linux can work as a client with Windows Servers.
• Although the current version does not include support for the Network Access Protection (NAP) mechanisms introduced with Windows Server 2008, Red Hat plans to add support for NAP in the next point release for RHEL (5.4) in another six months or so.

This could be good news for Vista administrators who must also work with Red Hat servers as part of their network infrastructure. And it’s also a refreshing change to see a company touting its support for Vista, when so much other coverage seems to focus on low adoption rates, plans to skip over Vista entirely for Windows 7, and other, similar “doom and gloom” topics.