Red Hat Enterprise Linux 5 經已釋出，新版本有多項新功能特性:
=> Virtualization support officially included
=> Based upon XEN
=> GUI tools for management
=> Para-virtualized RHEL 5 and RHEL 4 update 5
=> Full virtualized for 3rd party oses
=> Linux kernel v2.6.18
=> Includes support for Intel Network Accelerator Technology
=> SELinux with SEtroubleshooter GUI tool
=> Compare and see all kernel features here
=> IPSEC enhancements
=> ExecShield enhancements, such as a call frame Canary word, strengthen hacker defenses
=> New Audit features provide powerful new search/reporting and real-time monitoring
=> LAMP (Apache 2.x, PHP 5.x, MySQL 5.x etc)