Linux 32-bit: SoulseekQt-2016-1-17-32bit.tgz
Linux 64-bit: SoulseekQt-2016-1-17-64bit.tgz
See the Changelog for list of features and fixes.
The retry option was added in the very last public build. Assuming that's what you're using, can you see if you get the Retry Download menu option for other aborted downloads?