Well, the 1.12 conversion was made by someone else, the original mod creator (Uzii) is long gone. So the OP may not be updated, but I do remember a link to the 1.12 version posted in the thread.
Before Uzii was gone, he have give everything to Danman... And Danman have continue with it, add more material...
Solar Sins, is mainly the Uzii mod with few more rogue sun, black hole, etc... and some other basic mods... it is the base of 7DS... Soon, 7DS 2.0 will be released for 1.05 ... The 7DS 2.5 will be the 2.0 for 1.12 ... Sure that in the same time, Solar Sins will be updated to the 2.5 too, maybe with new space object...
Yes, conversion are made by other... but conversion of the old sins plus don't give you all the new planet or planet bonus.... conversion of solar sins are good, they spare us some work... and have all the content for now...