posts: Add Rustup 1.22.0 release post

posts/2020-07-06-Rustup-1.22.0.md

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+---
+layout: post
+title: "Announcing Rustup 1.22.0"
+author: The Rustup Working Group
+---
+
+The rustup working group is happy to announce the release of rustup version 1.22.0. [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 1.22.0 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 1.22.0
+
+This release is mostly related to internal rework and tweaks in UI messages.  It is effectively a quality-of-life update which includes things such as:
+
+* Supporting the larger MIPS release files which now exceed 100MB in individual files
+* Supporting running in a lower-memory mode on single-CPU systems, along with detecting any in-place soft-limits on memory consumption in an effort to reduce the chance you run out of RAM during an install on systems like Raspberry Pis
+* When we skip a `nightly` for missing-component reasons we now tell you all the missing components
+* We now tell you where overrides are coming from in `rustup show`
+* Added `riscv64gc-unknown-linux.gnu` version of `rustup`
+* You can now specify multiple components when installing a toolchain more easily.  For example, if you wanted to install nightly with the `default` profile, but add the IDE support all in one go, you can now run
+  ```
+  rustup toolchain install --profile default --component rls,rust-analysis,rust-src nightly
+  ```
+
+There are many more changes in 1.22.0, with around 90 PRs, though a large number of them are internal changes which you can look at in [Github](https://github.com/rust-lang/rustup/commits/master) if you want, and you can see a little more detail than the above in our [changelog](https://github.com/rust-lang/rustup/blob/stable/CHANGELOG.md#1220---2020-06-30).
+
+## Thanks
+
+Thanks to all the contributors who made rustup 1.22.0 possible!
+
+- Alejandro Martinez Ruiz
+- Alexander D'hoore
+- Ben Chen
+- Chris Denton
+- Daniel Silverstone
+- Evan Weiler
+- Guillaume Gomez
+- Harry Sarson
+- Jacob Lifshay
+- James Yang
+- Joel Parker Henderson
+- John Titor
+- Jonas Platte
+- Josh Stone
+- Jubilee
+- Kellda
+- LeSeulArtichaut
+- Linus Färnstrand
+- LitoMore
+- LIU An (劉安)
+- Luciano Bestia
+- Lzu Tao
+- Manish Goregaokar
+- Mingye Wang
+- Montgomery Edwards
+- Per Lundberg
+- Pietro Albini
+- Robert Collins
+- Rudolf B.
+- Solomon Ucko
+- Stein Somers
+- Tetsuharu Ohzeki
+- Tom Eccles
+- Trevor Arjeski
+- Tshepang Lekhonkhobe