# `Codex.Events.DeprecationNotice`
[🔗](https://github.com/nshkrdotcom/codex_sdk/blob/v0.18.1/lib/codex/events.ex#L453)

Event emitted when the server reports a deprecated feature or behavior.

# `t`

```elixir
@type t() :: %Codex.Events.DeprecationNotice{
  details: String.t() | nil,
  summary: String.t()
}
```

---

*Consult [api-reference.md](api-reference.md) for complete listing*