October 3, 2009
Starting from today (October 4th), the only available BETA version from members zone would be the most recent one, plus eventually one version back. Such decision was made because people tended to use obsolete BETA versions on random basis which is not good practice.
If you decide to use BETA version, you need to keep it updated to most recent one, or don’t use BETA at all.
Most recent BETA version always include fixes to any bugs found earlier so it is important to keep it updated.