The MonetDB team at CWI/MonetDB BV is pleased to announce the Aug2009-SP1 bug fix release of the MonetDB suite of programs. This is the first bug fix release for the Aug2009 release. More information on this release can be found at <http://monetdb.cwi.nl/projects/monetdb//Development/Releases/Aug2009/#Aug2009_SP1>. The sources and binaries are available at <http://monetdb.cwi.nl/projects/monetdb/Download/>. -- Sjoerd Mullender