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contributing: Add steps for updating the MSRV

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Michael Davis 2024-12-03 10:01:52 -05:00
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docs/CONTRIBUTING.md
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@ -59,10 +59,16 @@ ## Integration tests
## Minimum Stable Rust Version (MSRV) Policy
Helix follows the MSRV of Firefox.
The current MSRV and future changes to the MSRV are listed in the [Firefox documentation].
Helix keeps an intentionally low MSRV for the sake of easy building and packaging
downstream. We follow [Firefox's MSRV policy]. Once Firefox's MSRV increases we
may bump ours as well, but be sure to check that popular distributions like Ubuntu
package the new MSRV version. When increasing the MSRV, update these three places:
[Firefox documentation]: https://firefox-source-docs.mozilla.org/writing-rust-code/update-policy.html
* the `workspace.package.rust-version` key in `Cargo.toml` in the repository root
* the `env.MSRV` key at the top of `.github/workflows/build.yml`
* the `toolchain.channel` key in `rust-toolchain.toml`
[Firefox's MSRV policy]: https://firefox-source-docs.mozilla.org/writing-rust-code/update-policy.html
[good-first-issue]: https://github.com/helix-editor/helix/labels/E-easy
[log-file]: https://github.com/helix-editor/helix/wiki/FAQ#access-the-log-file
[architecture.md]: ./architecture.md