RHEL 5.3 Brings Nehalem Support and OpenJDK
Red Hat has released its version 5.3 of Enterprise Linux (RHEL). Among its new features are support for Intel's Microarchitecture (Nehalem) processor and for larger systems. It also includes the Java SE6-compliant OpenJDK.
The new RHEL version is well suited for full fledged hardware, such as is found in virtual system hosts. Intel 64-bit machines can now have 126 physical CPUs and 1 TByte working memory. A virtual server can have up to 32 processors and 80 GBytes of RAM.
In addition, the new Enterprise Linux's new generation will run on Intel's 64-bit Nehalem (Core i7) processor and support its hyperthreading and power management capabilities. Red Hat makes the same claims of "green IT" power management for other supported processors.
For its Java environment, Red Hat chose the GPLv2-licensed OpenJDK as part of its distro, having passed the Java Technology Compatibility Kit (TCK) test some time ago.
Further details about RHEL 5.3 are in their comprehensive release notes. Customers with RHEL subscriptions can get the update over Red Hat Network.
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.

News
-
USB4 Maintainer Leaves Intel
Michael Jamet, one of the primary maintainers of USB4 and Thunderbolt drivers, has left Intel, leaving a gaping hole for the Linux community to deal with.
-
Budgie 10.9.3 Now Available
The latest version of this elegant and configurable Linux desktop aligns with changes in Gnome 49.
-
KDE Linux Alpha Available for Daring Users
It's official, KDE Linux has arrived, but it's not quite ready for prime time.
-
AMD Initiates Graphics Driver Updates for Linux Kernel 6.18
This new AMD update focuses on power management, display handling, and hardware support for Radeon GPUs.
-
AerynOS Alpha Release Available
With a choice of several desktop environments, AerynOS 2025.08 is almost ready to be your next operating system.
-
AUR Repository Still Under DDoS Attack
Arch User Repository continues to be under a DDoS attack that has been going on for more than two weeks.
-
RingReaper Malware Poses Danger to Linux Systems
A new kind of malware exploits modern Linux kernels for I/O operations.
-
Happy Birthday, Linux
On August 25, Linux officially turns 34.
-
VirtualBox 7.2 Has Arrived
With early support for Linux kernel 6.17 and other new additions, VirtualBox 7.2 is a must-update for users.
-
Linux Mint 22.2 Beta Available for Testing
Some interesting new additions and improvements are coming to Linux Mint. Check out the Linux Mint 22.2 Beta to give it a test run.