Rust 1.100 adds dependency cooldowns
The release stabilizes the never type, core allocator APIs and new Cargo capabilities.
What changed
Cargo adds unused-dependency warnings and minimum publish-age dependency resolution. The latter can delay adoption of newly published package versions.
Why it matters
A waiting period gives the package ecosystem time to discover problematic releases before projects automatically adopt them.
Rust Release Team
Announcement published November 12, 2026. This briefing is an original summary of the linked reporting or announcement.
Read the original