Robert, thanks by your message and your interest. About to put sort::parallel in the Incubator, sincerely I don't know what must do now. As say Steven, I think the logic is to join the two parts spread sort and parallel in a repository, controlled by Steven and myself. But the spread sort part is approved and the parallel part not. I don't know where must be located the approved libraries. Personally, don't have any problem with any of the options mentioned My other library ( don't approved yet) Countertree, I will move to the Incubator when finish the exams of my students, the last week of June. I will consult the details with Robert (thanks by tour interest and your continuous work with the Incubator) About the approbation, I don't know if must open other approbation process or if depend only of Steven. As you can see, I am a sea of doubts. What's you opinion ? Thanks Francisco