How can I know the version of SFTP on the serve

I tried the latest 3.7.1 for file transfer in Chinese names. The filename was not displayed correctly and after transfer it was modified as it was shown. However the content of the file was correct.

I doubt whether the SFTP server is version 4.0 or not. How can I know that? Thanks!

Henry wrote:

I doubt whether the SFTP server is version 4.0 or not. How can I know that? Thanks!

You can see it on status bar of the main window. There will be something like "SFTP (v4)".