I just added support for Delphi XE2 to XE6 in DprojSplitter V1.0.4 – no change in functionality so far.
As I currently don’t have the time to test the plugin in all supported Delphi versions, please give me a note if anything is not working as expected and I will fix it as soon as possible.
In case you are still using a Delphi version below XE2 you have to be patient. The relevant dproj settings are stored in a different way in older Delphi versions, so supporting those is not just a matter of making it compile, but implementing it in another way.
To justify the effort I would like to hear from you which Delphi versions you would like to see supported, so please drop a short comment here.