v3.9.3

Fixed

• Fix clippy::missing_docs_in_private_items triggering for start_fn members (#389)

v3.9.2

Fixed

• Fix rust-analyzer "Go to Definition" inside #[builder] functions (#385)

Internal

• Regular maintenance (#379, #381, #386)

v3.9.1

This is purely a minutiae update with zero changes to the Rust API. Enjoy the stability 🍸.

Fixed

• Redistribute license files with the crates sources (#376)

Internal

• Regular maintenance (#377)

v3.9.0

Added

• Introduce a new experimental attribute builder(generics(setters)) for overwriting generic types on the builder. (#364, #368, #370). Thanks @dflemstr for the contribution!
• Support builder(overwritable) with builder(getter) (#369)

Internal

• Regular maintenance (#365)

v3.8.2

Fixed

• Don't attempt to compile big default value showcases as ignored rust doctests (#360)

Internal

• Regular maintenance (#361, #354, #363)

v3.8.1

Fixed

• Fix clippy::wrong_self_convention warning for fields with is_ prefix etc. (#349). Thanks @nicmue for the contribution!

Internal

• Add a regression test for clippy::wrong_self_convention (#350)

v3.8.0

Lint Update Notice

This release brings some rustdoc improvements and no other visible API changes except that rustc and clippy will start reporting some more true-positive lints. For example builder methods defined via an impl block annotated with #[bon] will now be correctly reported as unused if they are not used. Also, using a private type in a public builder method will trigger a private_interfaces lint now.

This is all thanks to the updated span handling design researched and implemented by @Eisverygoodletter. It's not clear what other new lints the new span handling may trigger in other realworld codebases. If you see a lint from the code generated by bon that you think shouldn't be there, please, open an issue, and it'll be fixed as soon as possible!

Changed

• Make rustdoc source links for the starting function reference original function (#341). Thanks @Eisverygoodletter for the contribution!
• Make rustdoc source links for setters/getters reference original member (#345)

Internal

• Regular maintenance (#342, #343, #347)

v3.7.2

Fixed

• Add missing lifetime replacement for generic param declarations on derive(IntoFuture) impl block (#337)
• Set the lower bound requirement of rustversion to v1.0.19 (#336). Thanks @Fokko for the contribution!

v3.7.1

This is a small patch release to make bon easier to package for Debian.

Other

• Add Copyright header to the MIT License (#331)

Internal

• Fix MSRV tests and lints from nightly 13-08-2025 (#329)
• Revert refactoring PR 320 to make code compatible with darling 0.20 (#332)

v3.7.0

Added

• Add support for #[builder(derive(IntoFuture(Box)))] (#322).
  This allows calling builder.await instead of builder.call().await. Thanks @jakubadamw for the contribution!

Fixed

• Add missing where clause forwarding to #[builder(derive(Into))] (#325)

Internal

• Make tests pass without the experimental-overwritable feature (#326)
• Sunset financial support by Kindness (#324)
• Fix clippy lints from nightly (2025-08-09) (#323)