We are pleased to announce the availability of version 1.0 of the M5 simulator system. This version, released last week at our ISCA-32 tutorial, has now been posted on SourceForge for general access. See our home page (http://m5.eecs.umich.edu) for features and documentation, or go directly to SourceForge (http://sourceforge.net/projects/m5sim) to download. In addition to numerous bug fixes, the new release includes everything you need to boot Linux (including kernel and disk images, available in the separate m5_system_1.0.tar.gz file). This release also includes an all-new Python-based script language for specifying configurations. Please use the m5sim-users(a)lists.sourceforge.net for any questions. Thank you, The M5 Development Team