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Rust’s New Borrow Checker (Polonius) Is Coming: Revision history

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17 November 2025

  • curprev 14:5714:57, 17 November 2025 PC talk contribs 16,301 bytes +16,301 Created page with "500px Rust has long been praised for combining performance and safety, but one of its most subtle — and at times frustrating — features is the borrow checker. It’s strict, quirky, sometimes surprising. Over the years, Rust’s community has pushed the boundaries of what the borrow checker accepts, culminating in non-lexical lifetimes (NLL). But there’s still more to do. Enter Polonius — a next-generation borrow checker (or, more p..."
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