Rust 1.20.0 prerelease testing

alexcrichton · August 28, 2017, 2:40pm

Rust 1.20 is released on Thursday and builds are available now for testing. Release artifacts are uploaded to dev (dev-static.rust-lang.org) currently and will be promoted to prod (static.rust-lang.org) this Thursday. The URL is https://dev-static.rust-lang.org/dist/2017-08-27/

You can test rustup with

RUSTUP_DIST_SERVER=https://dev-static.rust-lang.org 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 Thursday.

djc · August 28, 2017, 2:50pm

Release notes:

github.com

rust-lang/rust/blob/beta/RELEASES.md

Version 1.22.0 (2017-11-23)
==========================

Language
--------
- [`non_snake_case` lint now allows extern no-mangle functions][44966]
- [Now accepts underscores in unicode escapes][43716]
- [`#![feature(const_fn)]` is now no longer required for
  calling const functions.][43017] It's still required for creating
  constant functions.
- [`T op= &T` now works for numeric types.][44287] eg. `let mut x = 2; x += &8;`
- [types that impl `Drop` are now allowed in `const` and `static` types][44456]

Compiler
--------
- [rustc now defaults to having 16 codegen units at debug on supported platforms.][45064]
- [rustc will no longer inline in codegen units when compiling for debug][45075]
  This should decrease compile times for debug builds.
- [strict memory alignment now enabled on ARMv6][45094]
- [Remove support for the PNaCl target `le32-unknown-nacl`][45041]

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alexcrichton · March 25, 2019, 8:14am

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Rust 1.20.0 prerelease testing

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