Complex sentence: The second alpha release, "Haiku R1/Alpha 2", was made available on May 9,2010, and the third alpha release, "Haiku R1/Alpha 3", on June 18,2011.
Split into simpler sentences: The second alpha release, "Haiku R1/Alpha 2", was made available on May 9,2010. The third alpha release, "Haiku R1/Alpha 3", was released on June 18,2011.