Copilot Rewrites The Runtime Without A Flag Day
GitHub used agents to port Copilot's shared runtime from TypeScript to 832,000 lines of Rust. The more useful story is how it kept shipping throughout.
// Topic
Rust
Rust Lets Polonius Into Nightly
Rust's next borrow checker is now on nightly, giving developers a real shakeout period for flow-sensitive borrowing before stabilization.
The Race Condition Hiding in the Flush
Cloudflare's six-week hunt through a truncated image response is a reminder that observability stops at the layer you forgot to instrument.
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