🚀 serde-rs/serde - Release Notes

- Prevent `absolute_paths` Clippy restriction being triggered inside macro-generated code (#2906, thanks @davidzeng0)

- Documentation improvements

- Support serializing externally tagged unit variant inside flattened field (#2786, thanks @Mingun)

- Mark all generated impls with #\[automatically_derived\] to exclude from code coverage (#2866, #2868, thanks @tdittr)

- Produce warning when multiple fields or variants have the same deserialization name (#2855, #2856, #2857)

- Implement IntoDeserializer for all Deserializers in serde::de::value module (#2568, thanks @Mingun)

- Fix support for macro-generated `with` attributes inside a newtype struct (#2847)

- Fix hygiene of macro-generated local variable accesses in serde(with) wrappers (#2845)

- Improve error reporting about mismatched signature in `with` and `default` attributes (#2558, thanks @Mingun)
- Show variant aliases in error message when variant deserialization fails (#2566, thanks @Mingun)
- Improve binary size of untagged enum and internally tagged enum deserialization by about 12% (#2821)

- Support serializing and deserializing `IpAddr` and `SocketAddr` in no-std mode on Rust 1.77+ (#2816, thanks @MathiasKoch)
- Make `serde::ser::StdError` and `serde::de::StdError` equivalent to `core::error::Error` on Rust 1.81+ (#2818)

- Fix deserialization of empty structs and empty tuples inside of untagged enums (#2805, thanks @Mingun)

- Support serializing and deserializing unit structs in a `flatten` field (#2802, thanks @jonhoo)

- Improve interactions between `flatten` attribute and `skip_serializing`/`skip_deserializing` (#2795, thanks @Mingun)

- Improve support for `flatten` attribute inside of enums (#2567, thanks @Mingun)

- Use serialize_entry instead of serialize_key + serialize_value when serialize flattened newtype enum variants (#2785, thanks @Mingun)
- Avoid triggering a collection_is_never_read lint in the deserialization of enums containing flattened fields (#2791)

- Apply #\[diagnostic::on_unimplemented\] attribute on Rust 1.78+ to suggest adding serde derive or enabling a "serde" feature flag in dependencies (#2767, thanks @weiznich)

- Documentation improvements (#2747)

- Provide public access to RenameAllRules in serde_derive_internals (#2743)

- Resolve unexpected_cfgs warning (#2737)

- Fix formatting of "invalid type" and "invalid value" deserialization error messages containing NaN or infinite floats (#2733, thanks @jamessan)

- Fix ambiguous associated item when `forward_to_deserialize_any!` is used on an enum with `Error` variant (#2732, thanks @aatifsyed)

- Support serializing and deserializing `Saturating` (#2709, thanks @jbethune)

- Fix unused_imports warnings when compiled by rustc 1.78
- Optimize code size of some Display impls (#2697, thanks @nyurik)

- Improve formatting of "invalid type" error messages involving floats (#2682)

- Prevent remote definitions of tuple struct or tuple variant from triggering dead_code warning (#2671)

- Update proc-macro2 to fix caching issue when using a rustc-wrapper such as sccache

- Fix field names used for the deserialization of `RangeFrom` and `RangeTo` (#2653, #2654, #2655, thanks @emilbonnek)

- Allow internal tag field in untagged variant (#2646, thanks @robsdedude)

- Documentation improvements

- Preserve NaN sign when deserializing f32 from f64 or vice versa (#2637)