Scientific Linux 6.6 is the latest update of the distribution built from source package for Red Hat Enterprise Linux 6.6, with additional software meant for use in scientific and academic environment. Major differences from SL6.5: OpenAFS has been updated to version 1.6.10 from openafs.org; X.Org Server features a new ABI. Users of proprietary drivers may experience issues with the X server loading due to changes between X.Org Server 1.13 and 1.15. Users of the 32-bit iSCSI utilities on x86_64 systems may experience multilib complaints. The 32-bit iSCSI utilities are not provided by upstream on x86_64 platforms. We have removed them from 6.6 to follow their behavior.
About Scientific Linux
Scientific Linux is a recompiled Red Hat Enterprise Linux, co-developed by Fermi National Accelerator Laboratory and the European Organization for Nuclear Research (CERN). Although it aims to be fully compatible with Red Hat Enterprise Linux, it also provides additional packages not found in the upstream product; the most notable among these are various file systems, including Cluster Suite and Global File System (GFS), FUSE, OpenAFS, Squashfs and Unionfs, wireless networking support with Intel wireless firmware, MadWiFi and NDISwrapper, Sun Java and Java Development Kit (JDK), the lightweight IceWM window manager, R - a language and environment for statistical computing, and the Alpine email client.