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Merge pull request #2241 from io41/patch-1 

Update upgrading.html.markdown
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James Phillips 2016-08-12 16:46:30 -07:00 committed by GitHub
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@ -73,13 +73,13 @@ running `consul -v`. You'll see output similar to that below:
```
$ consul -v
Consul v0.1.0
Consul Protocol: 1 (Understands back to: 1)
Consul v0.6.3
Consul Protocol: 3 (Understands back to: 1)
```
This says the version of Consul as well as the latest protocol version (1,
This says the version of Consul as well as the latest protocol version (3,
in this case). It also says the earliest protocol version that this Consul
agent can understand (0, in this case).
agent can understand (1, in this case).
By specifying the `-protocol` flag on `consul agent`, you can tell the
Consul agent to speak any protocol version that it can understand. This