Rust 1.90 also demotes x86_64-apple-darwin target from Tier 1 with host tools to Tier 2 with host tools. GitHub will soon discontinue the provision of free macOS x86-64 runners for public repositories, while Apple has announced plans to discontinue support for the x86-64 architecture, the Rust team noted. The team added that this change will not immediately impact users. Builds of both the standard library and the compiler still will be distributed by the Rust Project for use via rustupor alternative installation methods while the target remains at Tier 2. But over time it is likely that reduced coverage for this target will cause things to break or fall out of compatibility with no further announcements, the team said.
Also in Rust 1.90, the x86_64-unknown-linux-gnu target now will use the LLD linker for linking Rust crates by default. The release team said this should result in improved linking performance versus the default BFD Linux linker. Developers should not see any difference other than reduced compilation time. But if they do experience issues, developers can opt out by using the -C linker-features=-lld compiler flag, the Rust team said.
