posts: Release of Rustup 1.23.0

Signed-off-by: Daniel Silverstone <[email protected]>

Author: kinnison

posts/2020-11-27-Rustup-1.23.0.md

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+---
+layout: post
+title: "Announcing Rustup 1.23.0"
+author: The Rustup Working Group
+---
+
+The rustup working group is happy to announce the release of rustup version 1.23.0. [Rustup][install] is the recommended tool to install [Rust][rust], a programming language that is empowering everyone to build reliable and efficient software.
+
+If you have a previous version of rustup installed, getting rustup 1.23.0 is as easy as closing your IDE and running:
+
+```
+rustup self update
+```
+
+Rustup will also automatically update itself at the end of a normal toolchain update:
+
+```
+rustup update
+```
+
+If you don't have it already, you can [get rustup][install] from the appropriate page on our website.
+
+[rust]: https://www.rust-lang.org
+[install]: https://rustup.rs
+
+## What's new in rustup 1.23.0
+
+This release has a few important things we'd like to highlight:
+
+`rustup` is now available for the Apple M1 based computers. We now have an
+`aarch64-apple-darwin` release of `rustup` which means that you ought to
+be able to install a native `rustup` and compiler toolset on that platform.
+
+**NOTE:** As of the time of this blog post, there is no _stable_ release of
+the M1 toolchain, so you will need to select `beta` or `nightly` when
+prompted for a toolchain to install. Also, this new platform is currently
+only supported at Tier 2. You can track the support details here:
+<https://github.com/rust-lang/rust/issues/73908>
+
+There is now support for two-part version numbers. You can
+`rustup toolchain install 1.48` for example, and this will provide you with a
+`1.48` toolchain which will update if a `1.48.1` toolchain update were released.
+This can be useful if you often want the latest patch of a particular compiler
+release for CI etc.
+
+The documentation for `rustup` is now in an mdbook style book and is published
+here: <https://rust-lang.github.io/rustup/>
+
+We now support a structured `rust-toolchain` file format, though the current
+single-line simple format is still supported. You can find more
+information in the [overrides chapter][toolchain-file] of our new book, but here
+is an example of a new toolchain override file which selects a specific version
+of `nightly`, requires `clippy`, and causes the `wasm32-unknown-unknown` target
+to be installed as well:
+
+```toml
+[toolchain]
+channel = "nightly-2020-11-27"
+components = [ "clippy" ]
+targets = [ "wasm32-unknown-unknown" ]
+```
+
+[toolchain-file]: https://rust-lang.github.io/rustup/overrides.html#the-toolchain-file
+
+There are many more changes in 1.23.0, and we invite you to take a look at our
+[changelog][] if you'd like to know more.
+
+[changelog]: https://github.com/rust-lang/rustup/blob/stable/CHANGELOG.md
+
+## Thanks
+
+Thanks to all the contributors who made rustup 1.23.0 possible!
+
+- Aaron Loucks
+- Aleksey Kladov
+- Aurelia Dolo
+- Camelid
+- Chansuke
+- Carol (Nichols || Goulding)
+- Daniel Silverstone
+- Dany Marcoux
+- Eduard Miller
+- Eduardo Broto
+- Eric Huss
+- Francesco Zardi
+- FR Bimo
+- Ivan Nejgebauer
+- Ivan Tham
+- Jake Goulding
+- Jens Reidel
+- Joshua M. Clulow
+- Joshua Nelson
+- Jubilee Young
+- Leigh McCulloch
+- Lzu Tao
+- Matthias Krüger
+- Matt Kraai
+- Matt McKay
+- Nick Ashley
+- Pascal Hertleif
+- Paul Lange
+- Pietro Albini
+- Robert Collins
+- Stephen Muss
+- Tom Eccles