FluffyLogic - 2009-08-19

Hi - I'm doing some research for my PhD and looking at how p2p systems change over time.  One of the things I'm after is knowing the dates on which older versions of ABC were released.

Unfortunately the changelog http://pingpong-abc.sourceforge.net/changes.php does not have dates on, so if anyone could tell me the dates that versions;
0 to 2.3
2.5
2.7 - 2.9
Were released, I'd be very grateful!  Thanks.