LINUXWORLD, BOSTON February 15, 2005 Red Hat, the leading provider of open source solutions to the enterprise, announced global availability of Red Hat Enterprise Linux v.4 last night at a press conference hosted by Red Hat executives, partners and customers. This latest release of Red Hat Enterprise Linux enables enterprise organizations to realize the benefits of open source innovation throughout their IT environment, particularly in the areas of performance and security. Red Hat Enterprise Linux proves that Linux solutions can effectively eliminate for the need for Solaris in the enterprise.

"This release of Red Hat Enterprise Linux is a defining milestone in the evolution of Linux as the backbone of the enterprise," said Paul Cormier, Executive Vice President of Engineering at Red Hat. "Red Hat Enterprise Linux in 2002 marked the entrance of Linux in the enterprise. The second version one year later put us at par with Unix in terms of reliability, and ahead in terms of value. Red Hat Enterprise Linux v.4 has the performance, scalability, security, and application portfolio needed to make Linux the sensible choice for every deployment, from servers connected to client and desktop systems. This methodical delivery of innovation is helping create unprecedented value for the customer."

Red Hat has engineered Red Hat Enterprise Linux v.4 with a focus on:

• Platform stability and maturity based on a well-tested Linux 2.6 kernel
• Productivity improvements particularly for the desktop
• Technologies to meet enterprise security and compliance demands
• Exceptional performance and scalability for both 32- and 64-bit workloads

Red Hat continues to place great emphasis on the importance of partner relationships and collaboration with the community. This work is most evident in the breadth of architecture and application support of Red Hat Enterprise Linux v.4:

• Red Hat Enterprise Linux v.4 is available on 64-bit IntelŽ XeonTM and IntelŽ ItaniumŽ processor-based systems, AMD64, IBM POWERz-Series and S/390 and other x86 systems
• Hundreds of applications are currently in process to become certified on Red Hat Enterprise Linux v.4
• With the release of Red Hat Enterprise Linux v.4, more than 750 systems have been certified on Red Hat Enterprise Linux.
• Red Hat has collaborated with the community to bring to market mature open source technologies such as SELinux and Firefox, which greatly increase security and browser experience from servers through desktops and clients.
• Red Hat Desktop has made great strides in improving office productivity and usability. Also, capabilities ranging from mobility/wireless support (including Intel Centrino), to plug-and-play USB device recognition, to power management for laptops have been significantly upgraded.
• Customers will have a wide range of technologies to choose from, all based on a standard, single code base.

Red Hat Enterprise Linux v.4 is now available in 15 languages worldwide.