# Versioned contracts

Tracking: #4

The v1 contract is defined by three artifacts that are reviewed and versioned
together:

- [HTTP v1 semantics](http-v1.md)
- [UDP v1 wire format](udp-v1.md)
- [Generated OpenAPI 3.1 document](../api/rendezvous-v1.json)

The public .NET types live in `FinalFactory.Rendezvous.Contracts`, target
`netstandard2.1`, and contain no Server, Godot, or LiteNetLib dependency. Golden
vectors and a public-API snapshot make accidental wire or source compatibility
changes fail the normal test gate.

Any incompatible change requires a new contract version. Additive JSON fields
may be introduced within v1 because v1 readers ignore unknown object members.