The changes done on jasper4_1_fix_sub_report branch must be merged back into jasper4_1.
For what I could see the release of DynamicJasper 4.0.1 was done using the jasper4_1_fix_sub_report branch, but on http://dynamicjasper.com/download/ says that the current branch for 4.0+ is jasper4_1.
Also, it would be great that the latest stable and most recent release of DJ will be on master branch and the old stable releases stay on branch (for example DJ_3.x).
If it couldn't be done for some reason, at least I suggest to rename the branch jasper4_1 to something more explicit like DJ_4.x.
Thanks