Version 1.29
Version 1.28
Version 1.27.1 (bugfixes)
Version 1.27
Version 1.26
Version 1.25
Version 1.24
Version 1.23
Version 1.22
Version 1.21
Version 1.20, actually released on 2008-04-14.
Version 1.19
Version 1.18
Version 1.17