Green End SFTP Server is an SFTP server supporting up to protocol version 6. It is possible to use it as a drop-in replacement for the OpenSSH server (which supports only protocol version 3).

* Protocol versions 3 and higher: * Upload and download files * List files * Create directories and symbolic links * Rename and delete files * Protocol versions 4 and higher: * Filename encoding translation * Text mode transfers * String owner/group names (instead of numeric) * Sub-second timestamps (where supported by server OS) * Protocol versions 5 and higher: * Extended rename semantics (e.g. atomic overwrite) * Protocol versions 6 and higher: * Create hard links * Several SFTP extensions

Features of SFTP protocol versions are listed more detailed at .

Features beyond the v3 set depend on suitable client support. A list of clients and the versions they support is at .