In March 2011, it was said on the Wayback Machine forum that "The Beta of the new Wayback Machine has a more complete and up-to-date index of all crawled materials into 2010, and will continue to be updated regularly. The index driving the classic Wayback Machine only has a little bit of material past 2008, and no further index updates are planned, as it will be phased out this year".
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): When were details of the test version of the updated Wayback Machine released?
March 2011