= 4.6 Release Notes =


Release 4.6.6 is the latest version in the 4.6 release series. Release 4.6.6 of RTEMS is primarily a problem fixing release and the problems addressed are discussed here. The primary driving factor for 4.6.6 was a patch to address GCC optimizing code outside of interrupt disable critical sections. Other bug fixes and improvements were also committed to the branch so this release includes them. The notable changes are that the SPARC LEON3 BSP received significant improvements including supprt for SpaceWire and a new NIC from Gaisler Research. The PC386 BSP was modified to allow easy compile time selection of VGA or COM1 as the console.

4.6.6 is available for download from ftp://ftp.rtems.com/pub/rtems/4.6.6 or . http://www.rtems.com/ftp/pub/rtems/4.6.6.

Please be warned that the entire set of tools for all hosts can consume an enormous amount of space. For the 4.6 series, this is approximately 1.6 GB. The bulk of this is tool binaries for approximately 10 target CPU families on GNU/Linux, Cygwin, and Solaris. It is highly unlikely that any non-maintainer requires a full download. Please try to download just what is required.

In addition to the standard RTEMS feature set, the 4.6 release series includes these major improvements over previous RTEMS releases: