For confused people, (there seem to be a lot of them), D10-11 is actually D8-11. Saves from week 1, (even with Lains mod), work fine in D10-11, you just need to move them over manually by copying the save file or directory from your week 1 folder into your D10-11 folder.
D12-14 will actually be D8-14, (the complete week 2), and the saves will probably need to copied again from your D10-11 folder, but we are 2 months away from the scheduled release for D12-14 so the save issue might be fixed by then.