The latest versions of the RA FTP No Web Agent are packaged with a specific version of the jsch jar file. The latest version as of the writing of this article is RA FTP No Web Agent version 4.1.0 which is packaged with jsch-0.1.55.jar.
Does Applications Manager's RA FTP Agent support jsch-0.1.56.jar or higher (forked version)?
Release : 9.4
Component : RA FTP 4.0+
The RA FTP team will be reviewing the Agent for additional SSH options. This may include compatibility with forked versions of the jsch jar file.
However, due to the testing required for this, there is currently no ETA of when these changes will be added or which version of the RA FTP Agent it will be included.