Revert real V8 handle scopes for NAPI callbacks (
e48bec8)
Deno backed out the change that made NAPI handle/callback scopes real V8 scopes, because native addons were creating handles and using them after the scope closed, which could crash the process. This restores the previous behavior to keep common addons like @parcel/watcher working safely.
Implement napi_async_init / napi_async_destroy (a6e4c53)
NAPI async context creation/destruction now allocates and frees real state instead of being a no-op / assertion trap. That unblocks native modules that use async contexts and prevents crashes in addons that rely on this API.
Speed up the Node event loop polling path (
8913828)
The core UV compatibility loop was reworked to poll only ready handles and to yield between I/O batches instead of scanning every live handle repeatedly. The change aims to reduce tail latency under load while also improving throughput.
Keep HTTP parser fast paths closer to Node (ea1be68, b3568ec)
Two HTTP parser fixes landed: one restores the consume fast path for more stream types and makes parse errors propagate as proper JS Error objects, and another skips the header-flush JS call when all headers fit in a single batch. Together these fix correctness gaps in the consume path and shave overhead from common request parsing.
Trim Node stream write overhead (6a8c080)
writev now pre-sizes its buffer and parses encoding names without allocating extra Rust strings, reducing per-request allocations on chunked write paths. That should lower overhead in hot stream writes, especially for HTTP-heavy workloads.
