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@@ -635,7 +635,11 @@ about dns resolves, etc, so the controller can keep synced. -RD]
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5.3. Backward compatibility
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For backward compatibility with the "version 0" control protocol, Tor checks
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- whether the third byte the first command is zero. If it is, Tor
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+ whether the third octet the first command is zero. If it is, Tor
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assumes that version 0 is in use. This feature is deprecated, and will be
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removed in the 0.1.2.x Tor development series.
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+ In order to detect which version of the protocol is supported controllers
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+ should send the sequence [00 00 0D 0A]. This is a valid and unrecognized
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+ command in both protocol versions, and implementations can detect which
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+ error they have received.
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Nick Mathewson