Re: WinSCP 5.9.1 supports JDK 1.6? AND WinSCP 5.9.1 supports Red Hat Enterprise Linux 7.2?
WinSCP has nothing to do with JDK.
Red Hat where? On server side? WinSCP does not care about remote server OS, but rather about the SSH/FTP server running there. If the server uses some standard SSH/FTP server (OpenSSH, ProFTPD, etc), all should be fine.