Deno 2.9 cuts cold start to 17ms and ships a one-binary desktop builder (deno.com)
Deno 2.9 halves cold start to 17.3 ms, pushes one realworld HTTP benchmark to 72.4k req/s, and adds `deno desktop` — point it at a web app and it auto-detects the framework, then cross-compiles to Windows, macOS and Linux from one machine.
A former Deno engineer says abundant AI access let the team finally crack Node's event-loop ordering, while it 'sent Bun off the rails.' A longtime supporter disagrees: he hit Node-compat regressions between minor releases and blames Claude-coauthored PRs.
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