is SFTPv4 support possible?

Stef Bon stefbon at
Wed Sep 29 19:43:19 AEST 2021

Op wo 29 sep. 2021 om 08:10 schreef Damien Miller <djm at>:
> On Tue, 28 Sep 2021, Stef Bon wrote:
> This is true for v3 too, it's just that v3 doesn't have flags for
> everything that later versions do. It does have an extension mechanism
> though...

No, there is no "supported" structure included in the packet the
server sends for version 3 and 4. only 5 and 6, see:

The extensions are the same for all versions.


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