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Differences

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2015-02-18		2016-01-20
login dialog was redesigned a while ago (martin)		5.8.1 Change: Not allowing SSH-1 by default. + Moving SSH-1-only options to less prominent positions on Advanced Site Settings dialog and removing SSH-2-only designations of session options. + Updating SSH version configuration texts from PuTTY 0.66 documentation (martin)
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	The //Enable compression// checkbox enables [[ssh#compression\|data compression]] in the SSH connection: data sent by the server is compressed before sending, and decompressed at the client end.		The //Enable compression// checkbox enables [[ssh#compression\|data compression]] in the SSH connection: data sent by the server is compressed before sending, and decompressed at the client end.

-	The //Preferred SSH protocol version// selection allows you to select whether you would like to use SSH protocol version 1 or version 2. WinSCP will attempt to use protocol 1 if the server you connect to does not offer protocol 2, and vice versa. If you select //1 only// or //2 only// here, WinSCP will only connect if the server you connect to offers the SSH protocol version you have specified. ((&puttydoccite))	+	The //Preferred %%SSH%% protocol version// selection allows you to select whether you would like to use SSH protocol version 2 or legacy version 1, and whether to permit falling back to the other version. If you select //2 only// or //1 only// here, WinSCP will only connect if the server you connect to offers the %%SSH%% protocol version you have specified. With the settings //2// and //1//, WinSCP will attempt to use protocol 1 if the server you connect to does not offer protocol 2, and vice versa.
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		+	You should normally leave this at the default, //2 only//. The older %%SSH-1%% protocol is no longer developed, has many known cryptographic weaknesses, and is generally not considered to be secure. If you permit use of %%SSH-1%% by selecting //2// instead of //2 only//, an active attacker can force downgrade to %%SSH-1%% even if the server you're connecting to supports %%SSH-2%%. ((&puttydoccite))

	You can see actually used protocol version on [[ui_fsinfo\|Server and Protocol Information Dialog]].		You can see actually used protocol version on [[ui_fsinfo\|Server and Protocol Information Dialog]].