Hello all, Same issue here, my client on Mac OS checked updates automatically, and I clicked yes to install the update to switch to the latest 1.1.27, but then the sync wouldn't work anymore because my NAS has a client with revision 1.0.134... Now I'm stuck to wait for synology to provide packet with 1.1.27. Or is there a link to the previous versions of the btsync clients? That would be perfect! And of course in the future I will make sure my NAS updates before updating my clients.