X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;ds=sidebyside;f=RELEASES.md;h=8f04980e390367dcf5bb9c187f710a00ead0d819;hb=907ba75eb0b063c1da72703642e5710b91868dc8;hp=13af6dfe0c9b48eafe14c1e244ed8a5e7bc4e42b;hpb=891341942ab49c42c991072a4ac27b4dd4f28779;p=rust.git diff --git a/RELEASES.md b/RELEASES.md index 13af6dfe0c9..8f04980e390 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -1,13 +1,13 @@ -Version 1.49.0 (2020-11-19) +Version 1.49.0 (2020-12-31) ============================ Language ----------------------- -- [Unions now implement `Drop`, and you can now have a field in a union +- [Unions can now implement `Drop`, and you can now have a field in a union with `ManuallyDrop`.][77547] -- [You can now cast zero sized enums (0 or 1 variants) integers.][76199] -- [You can now take bind by reference and by move in patterns.][76119] This +- [You can now cast uninhabited enums to integers.][76199] +- [You can now bind by reference and by move in patterns.][76119] This allows you to selectively borrow individual components of a type. E.g. ```rust #[derive(Debug)] @@ -25,7 +25,6 @@ Language let Person { name, ref age } = person; println!("{} {}", name, age); ``` -- [Macros that end with a semi-colon are now treated as statements.][78376] Compiler ----------------------- @@ -36,7 +35,7 @@ Compiler - [Added tier 3 support for `mipsel-unknown-none`.][78676] - [Raised the minimum supported LLVM version to LLVM 9.][78848] - [Output from threads spawned in tests is now captured.][78227] -- [TODO: rustc_target: Change os and vendor values to "none" and "unknown" for some targets][78951] +- [Change os and vendor values to "none" and "unknown" for some targets][78951] \* Refer to Rust's [platform support page][forge-platform-support] for more information on Rust's tiered platform support. @@ -73,9 +72,13 @@ Cargo Compatibility Notes ------------------- -- [Demoted `i686-unknown-freebsd` to tier 2 support.][78746] -- [Rustc will now check for the validity of attributes on enum variants.][77015] - Previously invalid or unused attributes were ignored. +- [Demoted `i686-unknown-freebsd` from host tier 2 to target tier 2 support.][78746] +- [Macros that end with a semi-colon are now treated as statements even if they expand to nothing.][78376] +- [Rustc will now check for the validity of some built-in attributes on enum variants.][77015] + Previously such invalid or unused attributes could be ignored. +- Leading whitespace is stripped more uniformly in documentation comments, which may change behavior. You + read [this post about the changes][rustdoc-ws-post] for more details. +- [Trait bounds are no longer inferred for associated types.][79904] Internal Only ------------- @@ -83,7 +86,7 @@ These changes provide no direct user facing benefits, but represent significant improvements to the internals and overall performance of rustc and related tools. -- [rustc's internal crates are now compiled the `initial-exec` Thread +- [rustc's internal crates are now compiled using the `initial-exec` Thread Local Storage model.][78201] - [Calculate visibilities once in resolve.][78077] - [Added `system` to the `llvm-libunwind` bootstrap config option.][77703] @@ -110,6 +113,7 @@ related tools. [74989]: https://github.com/rust-lang/rust/pull/74989 [79004]: https://github.com/rust-lang/rust/pull/79004 [78676]: https://github.com/rust-lang/rust/pull/78676 +[79904]: https://github.com/rust-lang/rust/issues/79904 [cargo/8864]: https://github.com/rust-lang/cargo/pull/8864 [cargo/8765]: https://github.com/rust-lang/cargo/pull/8765 [cargo/8758]: https://github.com/rust-lang/cargo/pull/8758 @@ -118,7 +122,9 @@ related tools. [`slice::select_nth_unstable_by`]: https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.select_nth_unstable_by [`slice::select_nth_unstable_by_key`]: https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.select_nth_unstable_by_key [`hint::spin_loop`]: https://doc.rust-lang.org/stable/std/hint/fn.spin_loop.html - +[`Poll::is_ready`]: https://doc.rust-lang.org/stable/std/task/enum.Poll.html#method.is_ready +[`Poll::is_pending`]: https://doc.rust-lang.org/stable/std/task/enum.Poll.html#method.is_pending +[rustdoc-ws-post]: https://blog.guillaume-gomez.fr/articles/2020-11-11+New+doc+comment+handling+in+rustdoc Version 1.48.0 (2020-11-19) ==========================