Announce Rustup 1.24.0

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

Author: kinnison

posts/2021-04-19-Rustup-1.24.0.md

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+---
+layout: post
+title: "Announcing Rustup 1.24.0"
+author: The Rustup Working Group
+---
+
+The rustup working group is happy to announce the release of rustup version 1.24.0. [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 1.24.0 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 1.24.0
+
+### Support of `rust-toolchain.toml` as a filename for specifying toolchains.
+
+Last year we released a new `toml` format for the `rust-toolchain` file. In order to bring Rustup closer into line with Cargo's behaviour around `.cargo/config` we now support the `.toml` extension for that file. If you call the toolchain file `rust-toolchain.toml` then you _must_ use the `toml` format, rather than the legacy one-line format.
+
+If both `rust-toolchain` and `rust-toolchain.toml` are present, then the former will win out over the latter to ensure compatibility between Rustup versions.
+
+### Better support for low-memory systems
+
+Rustup's component unpacker has been changed to have a smaller memory footprint when unpacking large components. This should permit users of memory-constrained systems such as some Raspberry Pi systems to install newer Rust toolchains which contain particularly large files.
+
+### Other changes
+
+There are more changes in rustup 1.24.0: check them out in the [changelog]!
+
+Rustup's documentation is also available in [the rustup book][book].
+
+[changelog]: https://github.com/rust-lang/rustup/blob/stable/CHANGELOG.md
+[book]: https://rust-lang.github.io/rustup/
+
+## Thanks
+
+Thanks to all the contributors who made rustup 1.24.0 possible!
+
+- Alex Chan
+- Aloïs Micard
+- Andrew Norton
+- chansuke
+- Daniel Alley
+- Daniel Silverstone
+- Eduard Miller
+- Eric Huss
+- est31
+- Gareth Hubball
+- Gurkenglas
+- Jakub Stasiak
+- Joshua Nelson
+- Jubilee (workingjubilee)
+- kellda
+- Michael Cooper
+- Philipp Oppermann
+- Robert Collins
+- SHA Miao
+- skim (sl4m)
+- Tudor Brindus
+- Vasili (3point2)
+- наб (nabijaczleweli)
+- 二手掉包工程师 (hi-rustin)