[Pharo-project] 3.9.1, version numbers and fixes

I'm a little bit confused. I started to have a look at the squeak fixes of 3dot10 we like to integrate. Looking at the version number I marked all version number up to 7075 as being duplicate (in the issue trackr) as we started from 3.9.1 which is 7075. But now I think I misunderstand something. I tried to merge squeak version 7076 into pharo. I did some stuff manually to be able to merge the monticello packages of that release. But the changes are massive. It's collections, collectionstests and kernel. There are even changes for widestring which I don't found in previous updates. Can somebody explain where we started off and what needs to be included. Pharo seems to be completely out of sync with 3.10. Norbert