The issues that is resolved in this upgrade are as follows:
New features introduced in this update include:
- Open InfiniBand (OpenIB) support
- Serial Attached SCSI support
- NFS access control lists, asynchronous I/O
- IA64 multi-core support and sgi updates
- Large SMP CPU limits increased using the largesmp kernel: Up to 512 CPUs in ia64, 128 in ppc64, and 64 in AMD64 and Intel EM64T
- Improved read-ahead performance
- Common Internet File System (CIFS) update
- Error Detection and Correction (EDAC) modules
- Unisys support
The following security bug was fixed in this update:
- dm-crypt did not clear a structure before freeing it, which could allow local users to discover information about cryptographic keys (CVE-2006-0095)
The upgrade includes several updates to devices and drivers. More details are available at: http://rhn.redhat.com/errata/RHSA-2006-0132.html