Cloudsync of 5.1 installable on 5.0?

Im running DSM 5.0 on my HP N54L. The latest (beta) Cloudsync version has problems. It resizes photos when syncing to Onedrive and has a cap on file sizes.

I've read that these have been solved with the Cloudsync that is installable after upgrading to 5.1. Ofcourse... we still have to wait untill 5.1 can be installed on our own hardware but I was wondering if there is a way to get that latest Cloudsync version and install it on my current 5.0 DSM?