I cannot follow your question exactly, but as the latest official version is 1.6 hotfix 2, rebus has that version.
If you send 1.7 daily to them, the max file is not going to open, it is going to give error. So you need to open a new max file with corona 1.6 installed and merge 1.7daily file, and make the render settings all over. then you can send it to rebus