Since the last RC was released last June, this is as close as you will get to a final 1.0 for a while. From their News Section on Jan 22, 2009:
Updating is recommended, there was a lot of bug fixes and improvments and 2 new tools were added: airdecloak-ng and tkiptun-ng. On Aircrack-ng, WPA bugs should be fixed and speed was greatly improved for computers that supports SSE2. Latest version of Airgraph-ng and Airoscript were included in this release.
CISSP, MCSE, CSTA, Security+ SME