ruphus13 writes: From the news post, "Red Hat has rolled out the newest update of Red Hat Enterprise Linux, RHEL 5.3. In addition to virtualization and power-saving enhancements, this update is also shipping the first productized implementation of OpenJDK for Red Hat. The 5.3 update includes increased scalability of physical and virtualized environments. According to a prepared statement, "The number of supported physical CPUs is increased to 126, while maximum memory is increased to 1TB. Virtual server CPU and memory limits have been increased to 32 and 80GB respectively."...The update is available to Red Hat subscription customers via the Red Hat Network, and does not require hardware or application recertification."