This article is from the SSH - Secure Shell FAQ, by Thomas Koenig Thomas.Koenig@ciw.uni-karlsruhe.de with numerous contributions by others.
The latest officially released version is is 1.2.20.
Ssh currently runs on UNIX or related systems, plus under OS/2. Ports
have been successful to all "mainstream" UNIX systems. There are two
versions for MS-Windows. There is a free beta version by Cedomir
Igaly, which can be obtained from http://public.srce.hr/~cigaly/ssh
or, preferably, from a mirror at
ftp://hotline.pvt.net/pub/win_utils/winsock/ssh/.
There's also a commercial version by Tatu Yloenen, the original author
of ssh. There's also a beta version for the Mac, available from
Datafellows.
 
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