DC-SWAT has more information on his blog (Google Translation).
DC-SWAT wrote:You've been waiting for a brand new release? I understand
I had a plan of everything to complete before releasing the next version, but some problems have caused delays and I don't see any solutions for them. So I have decided to publish a version of DreamShell as-is, and then I'll think about solving those other problems, since I don't know how long it will take. I also want to have a break from development, as I have been very involved in this project.