[tallerin]

the only diff i can think from 6.1 - 6.2/6.3 would be network code compatiabilty to updated clients for the time of release may also have other fixes added. If you really want to know 100% the differences are i believe there is a text file on source forge or the wikki ( not sure) of every thing added or changed in each release.

but 6.1 i believe is compatible to the eq client from 7/13/2005 - 8/10/2005
6.2 is client compatible from 8/11/2005 - 9/12/2005
6.3 is the same as 6.2 with a few added fixes done which is why i believe they named it 6.3

maybe off a day or two on the dates and the

DR1,DR2,DR3 are Dev releases so the difference between say 6.1DR1 and 6.1DR2 would be bug fixes,reworked network code etc.