posts: Announce Rustup 1.24.2

posts/2021-05-17-Rustup-1.24.2.md

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+---
+layout: post
+title: "Announcing Rustup 1.24.2"
+author: The Rustup Working Group
+---
+
+The rustup working group is happy to announce the release of rustup version 1.24.2. [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 1.24.2 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 1.24.2
+
+1.24.2 introduces pooled allocations to prevent memory fragmentation issues on
+some platforms with 1.24.x. We're not entirely sure what aspect of the streamed
+unpacking logic caused allocator fragmentation, but memory pools are a well
+known fix that should solve this for all platforms.
+
+Those who were encountering CI issues with 1.24.1 should find them resolved.
+
+### Other changes
+
+You can check out all the changes to Rustup for 1.24.2 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/
+
+Finally, the Rustup working group are pleased to welcome a new member. Between
+1.24.1 and 1.24.2 二手掉包工程师 (hi-rustin) has joined, having already made some
+excellent contributions.
+
+## Thanks
+
+Thanks again to all the contributors who made rustup 1.24.2 possible!
+
+- Carol (Nichols || Goulding)
+- Daniel Silverstone
+- João Marcos Bezerra
+- Josh Rotenberg
+- Joshua Nelson
+- Martijn Gribnau
+- pierwill
+- Robert Collins
+- 二手掉包工程师 (hi-rustin)