Rust: Updated baseline standards for Windows targets

[NewsBot]

A new Rust blog post/announcement has been posted!

The minimum requirements for Tier 1 toolchains targeting Windows will increase with the 1.78 release (scheduled for May 02, 2024). Windows 10 will now be the minimum supported version for the *-pc-windows-* targets. These requirements apply both to the Rust toolchain itself and to binaries produced by Rust.

Two new targets have been added with Windows 7 as their baseline: x86_64-win7-windows-msvc and i686-win7-windows-msvc. They are starting as Tier 3 targets, meaning that the Rust codebase has support for them but we don't build or test them automatically. Once these targets reach Tier 2 status, they will be available to use via rustup.

Affected targets

• x86_64-pc-windows-msvc
• i686-pc-windows-msvc
• x86_64-pc-windows-gnu
• i686-pc-windows-gnu
• <...

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