Re: UPgrade
It should work.
Search the version history for "Change:" for (a few and minor) backwards-incompatible changes since 5.5.1
https://winscp.net/eng/docs/history
https://winscp.net/eng/docs/history_old
Search the version history for "Change:" for (a few and minor) backwards-incompatible changes since 5.5.1
https://winscp.net/eng/docs/history
https://winscp.net/eng/docs/history_old