1.45.2 post

posts/2020-08-03-Rust-1.45.2.md

@@ -0,0 +1,48 @@
+---
+layout: post
+title: "Announcing Rust 1.45.2"
+author: The Rust Release Team
+release: true
+---
+
+The Rust team is announcing a new version of Rust, 1.45.2. Rust is a
+programming language that is empowering everyone to build reliable and
+efficient software.
+
+If you have a previous version of Rust installed via rustup, getting Rust
+1.45.2 is as easy as:
+
+```console
+rustup update stable
+```
+
+If you don't have it already, you can [get `rustup`][install] from the
+appropriate page on our website, and check out the [detailed release notes for
+1.45.2][notes] on GitHub.
+
+[install]: https://www.rust-lang.org/install.html
+[notes]: https://github.com/rust-lang/rust/blob/master/RELEASES.md#version-1452-2020-08-03
+
+## What's in 1.45.2 stable
+
+1.45.2 contains two fixes, one to 1.45.1 and the other to 1.45.0.
+
+## `#[track_caller]` on trait objects
+
+Trait objects with methods annotated with `#[track_caller]` would be
+miscompiled. `#[track_caller]` is not yet stable on 1.45. However, the standard
+library makes use of this on some traits for better error messages. Trait
+objects of `SliceIndex`, `Index`, and `IndexMut` were affected by this bug.
+
+## Tuple patterns binding `..` to an identifier
+
+In 1.45.1, we backported a fix for [#74539], but this fix turned out to be
+incorrect, causing other unrelated breakage. As such, this release reverts that
+fix.
+
+## Contributors to 1.45.2
+
+Many people came together to create Rust 1.45.2. We couldn't have done it
+without all of you. [Thanks!](https://thanks.rust-lang.org/rust/1.45.2/)
+
+[#74539]: https://github.com/rust-lang/rust/issues/74539