Prelease testing for 1.27.2

Rust 1.27.2 will be released on Friday, July 20th and builds are available now for testing. Release artifacts are uploaded to dev ( currently and will likely be promoted to production ( on Friday. The URL is,

You can test rustup with

RUSTUP_DIST_SERVER= rustup update stable

Please let us know if you run into any issues! Pending any detected regressions these are likely to be the exact artifacts that we’ll release on Friday.

You can find the release notes on GitHub as well:

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