RHEL version 5.5 was released, has been reconfigured for eight-core Nehalem-EX processors, Intel 12 core Opteron processor 6100 "Magny-Cours" AMD's core microprocessor 8 Power7 IBM, he Tim Burke, vice president of Platform Engineering department in charge of Red Hat said.

"This is a great time to launch the next version of RHEL to the market," analyst Charles King of Pund-IT said. To help customers exploit all the power of multicore processors, Red Hat has made improvements to RHEL 5.5 to optimize the ability to open system wide.

RHEL 5.5 support Single Root I / O Virtualization (SR-IOV) - specifications that allow multiple clients virtual OS to share hardware resources and PCI device I / O better. As well supporting the new multi-core chip, RHEL 5.5 also has some additional new features have been updated and expanded integration to Active Directory.
RHEL 5.5 has all the patches and patch maintenance since RHEL 5.4 was launched in September 2009.