This release includes updates to metadata for new or fixed API definitions (#3111, #3136), various improvements and fixes to code generation, compliance with new Rust warnings, additional COM authoring support improvements (#3065), limited non-Windows support (#3135), and more.

It includes major updates to the following crates, mainly due to breaking changes in metadata for API definitions.

• riddle 0.58.0
• windows 0.58.0
• windows-bindgen 0.58.0
• windows-core 0.58.0
• windows-implement 0.58.0
• windows-interface 0.58.0
• windows-metadata 0.58.0

It also includes major updates to the following utility crates.

• windows-result 0.2.0
• windows-registry 0.2.0

The windows-result crate now provides limited non-Windows support, and the windows-registry crate offers new lossless queries for binary and wide string values.

And it includes minor updates to the windows-targets crates, with the addition of several new APIs.

• windows-targets 0.52.6

This release also includes the first published version of the windows-strings crate, moving the string types from the windows-core crate into a dedicated crate as a smaller dependency. It also offers an efficient HSTRING builder (#3133).

To clarify, the only crates that continue to support limited non-Windows builds are:

• windows-bindgen and windows-metadata for code generation on non-Windows platforms.
• windows-core and windows-result for COM support on non-Windows platforms.

What's Changed

• Fix default rustfmt for repo by @kennykerr in https://github.com/microsoft/windows-rs/pull/3084
• Simplify standalone test by calling windows-bindgen directly by @kennykerr in https://github.com/microsoft/windows-rs/pull/3086
• Disable docs and tests for test crates by @kennykerr in https://github.com/microsoft/windows-rs/pull/3085
• Simplify pointer writes in generated code by @kennykerr in https://github.com/microsoft/windows-rs/pull/3089
• Infer return type in generated bindings by @kennykerr in https://github.com/microsoft/windows-rs/pull/3090
• Allow windows-result to work on non-Windows platforms by @sivadeilra in https://github.com/microsoft/windows-rs/pull/3082
• Change tests/standalone so that a tool regenerates its sources by @sivadeilra in https://github.com/microsoft/windows-rs/pull/3091
• Bump braces from 3.0.2 to 3.0.3 in /web/features by @dependabot in https://github.com/microsoft/windows-rs/pull/3092
• Use malloc on non-Windows platforms by @sivadeilra in https://github.com/microsoft/windows-rs/pull/3095
• COM interface impls move from MyApp to MyApp_Impl ("outer" object) by @sivadeilra in https://github.com/microsoft/windows-rs/pull/3065
• Workaround for false dead code warning by @kennykerr in https://github.com/microsoft/windows-rs/pull/3098
• The Debug derive macro does not need to be qualified by @kennykerr in https://github.com/microsoft/windows-rs/pull/3097
• Harden detection of missing nested types by @kennykerr in https://github.com/microsoft/windows-rs/pull/3099
• Use tools to generate bindings for library crates by @kennykerr in https://github.com/microsoft/windows-rs/pull/3102
• Allow unused to deal with new warning about "unused" private fields in structs by @kennykerr in https://github.com/microsoft/windows-rs/pull/3103
• Remove mio dependency by @kennykerr in https://github.com/microsoft/windows-rs/pull/3107
• Support some edge cases for the next Win32 metadata update by @kennykerr in https://github.com/microsoft/windows-rs/pull/3109
• Simplify how extension code for windows crate works by @sivadeilra in https://github.com/microsoft/windows-rs/pull/3110
• Directly invoke bindgen instead of recursively calling cargo run ... by @sivadeilra in https://github.com/microsoft/windows-rs/pull/3113
• Update Win32 metadata by @kennykerr in https://github.com/microsoft/windows-rs/pull/3111
• Don't compile windows and windows-sys in unit test mode by @sivadeilra in https://github.com/microsoft/windows-rs/pull/3112
• Remove unused dependencies by @kennykerr in https://github.com/microsoft/windows-rs/pull/3117
• Test cross-compilation with stable gnullvm targets by @mati865 in https://github.com/microsoft/windows-rs/pull/3104
• Add flexible registry type and byte query support by @kennykerr in https://github.com/microsoft/windows-rs/pull/3120
• Remove unnecessary test cfg checks by @kennykerr in https://github.com/microsoft/windows-rs/pull/3124
• Add windows-strings crate by @kennykerr in https://github.com/microsoft/windows-rs/pull/3125
• Lock down windows-core internals by @kennykerr in https://github.com/microsoft/windows-rs/pull/3129
• Remove "std" writer from windows-bindgen by @kennykerr in https://github.com/microsoft/windows-rs/pull/3130
• Allow Error and Result<()> to be the same size as HRESULT by @sivadeilra in https://github.com/microsoft/windows-rs/pull/3126
• Remove boxing support from windows-core crate by @kennykerr in https://github.com/microsoft/windows-rs/pull/3131
• Use conventional testing for windows_slim_errors by @kennykerr in https://github.com/microsoft/windows-rs/pull/3132
• Clarify support for non-Windows targets by @kennykerr in https://github.com/microsoft/windows-rs/pull/3135
• Add HSTRING builder and registry support by @kennykerr in https://github.com/microsoft/windows-rs/pull/3133
• Update Windows metadata to 10.0.26100.1 by @kennykerr in https://github.com/microsoft/windows-rs/pull/3136
• Implement Send and Sync for Weak<T> by @kennykerr in https://github.com/microsoft/windows-rs/pull/3138
• Remove Future implementation by @kennykerr in https://github.com/microsoft/windows-rs/pull/3142
• Ensure that HSTRING builder provides initialized memory by @kennykerr in https://github.com/microsoft/windows-rs/pull/3141
• Make new windows-strings crate Windows-only by @kennykerr in https://github.com/microsoft/windows-rs/pull/3143
• Release 0.58.0 by @kennykerr in https://github.com/microsoft/windows-rs/pull/3140

Full Changelog: https://github.com/microsoft/windows-rs/compare/0.57.0...0.58.0