@ws, there isn’t a CLI 2.1.0 yet. I’ll release it once the GUI 2.1.0 is out of beta. Currently the CLI version that the GUI calls is just the latest on the github master branch. If you don’t want to build the binary from github, you can find it under the directory where the GUI version is installed (on macOS it is usually under /Applications/Duplicacy.app/Contents/Resources/, and on Windows it is in the same directory as the GUI executable).
@maccra, this version does not support multiple storages within the same repository. I’m planning a web-based version that will support all CLI operations (like copy, check, prune).
@goldbattle, your bug report is super helpful! I’ll fix all of them in beta 2. As for the SFTP port, you can specify the server in the form of