44 lines
1.1 KiB
Markdown
44 lines
1.1 KiB
Markdown
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`VER` is a command introduced with [MSNP2](../versions/msnp2.md).
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It specifies which protocols the client can accept, and which one the server likes the best.
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# Client/Request
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```
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VER TrID dialect-name {dialect-name ...}
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```
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Where (possibly multiple) dialect-name(s) being the versions of the protocol your client can use.
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# Server/Response
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```
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VER TrID preferred-dialect-name
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```
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Where `preferred-dialect-name` is the preferred version of the protocol the server will continue to use. The highest is usually preferred, unless it isn't supported by the server.
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If the server's `preferred-dialect-name` is `0`, that means it doesn't want to use any of the protocols you have specified. A forced disconnect is to be expected in this circumstance.
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This command can only be sent once. Any further uses of this command in the same session is Undefined Behavour.
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# Examples
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## Unsupported Protocols
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```
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C: VER 1 DISREGARDANCE FOR A REAL PROTOCOL
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S: VER 1 0
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```
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Server closes connection.
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## Supported Fallback Protocol
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```
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C: VER 2 MSNP2 CVR0
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S: VER 2 CVR0
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```
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## Supported Primary Protocol
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```
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C: VER 3 MSNP8 CVR0
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S: VER 3 MSNP8
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```
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# Known changes
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* Removed in MSNP24.
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