You can read more here:
Downloads of source and binary distributions are listed in our download section:
http://maven.apache.org/download.html
A major goal of Maven 3.0 is to be compatible, to the extent possible, with existing plugins and projects designed for Maven 2.x. Users interested in testing this beta release should have a glance at the compatibility notes for known differences between Maven 3.0 and Maven 2.x:
http://cwiki.apache.org/MAVEN/maven-3x-compatibility-notes.html
If you encounter unexpected problems while using Maven 3.0-beta-1, please feel free to contact us via the Maven developer list: