serde 1.0.83 on Rust Cargo

Support a rename_all specification that applies only to the Serialize impl or only to the Deserialize impl (#1447, thanks @vincascm)

#[derive(Serialize, Deserialize)]
#[serde(rename_all(
    serialize = "camelCase",
    deserialize = "SCREAMING_SNAKE_CASE",
))]
struct S { /* ... */ }

Allow serializing struct name inside of structs with named fields (#1448, thanks @motu42)

#[derive(Serialize)]
#[serde(tag = "type")]
struct S { /* ... */ }  // serializes as {"type":"S",...}