- BREAKING: Revamped Deno.spawn() stdio API and added ref/unref support via Deno.spawnChild().
- Feature expansion: configurable test tool, DENO_JOBS env var, parallel test flag, import.meta.resolve, beforeunload & unhandledrejection events, 64‑bit FFI parameters, and LSP import‑map diagnostics.
- Bugfixes and performance tweaks: CLI improvements, FFI fixes, fmt enhancements, repl stability, task parsing, WebSocketStream handling, and on‑demand SWC emit.
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