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v0.7.0

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@brianathere brianathere released this 30 Mar 01:21
v0.7.0
4f4ddb8

Memory leak and correctness fixes

  • Fixed a heap leak where stream readable sides were never consumed on GET requests — heap dropped from 358MB to 5.4MB after 1M requests.
  • Fixed silent data loss at 8 call sites where fatal send errors were swallowed; now properly emits EVENT_ERROR to JS.
  • Fixed partial-write data loss in borrow-based stream_send.
  • Fixed io_uring RX buffer ring exhaustion with stop-and-wait cross-thread echo protocol.

Performance (+21.8% H3 sustained throughput)

  • RecyclableBuffer for inbound data — napi_create_external_buffer with finalize callbacks that return buffers to the worker pool via crossbeam, eliminating malloc fragmentation.
  • ChunkPool with 1KB/2KB/4KB size classes for outbound sends, with auto-recycle on drop.
  • Zero-copy H3 send via send_body_owned() wrapping Vec in ArcBuf without copying.
  • Event shape normalization — all JsH3Event objects now present the same set of JS properties, reducing V8 hidden classes from 6-8 to 2.
  • Lazy BackpressureState — per-stream state deferred until first backpressure, saving ~69K allocations/s.
  • Combined sendResponse — new respondWithBody() sends headers + body + FIN in 1 NAPI call instead of 3.

Shutdown lifecycle fix

  • Fixed a deadlock in close() on all four event loop types (H3 server/client, QUIC server/client) caused by synchronous thread join blocking the JS event loop.
  • Split shutdown() into requestShutdown() + joinWorker(), safe for all transport drivers (io_uring, kqueue, poll).

Transport drivers

  • io_uring: RX buffer ring exhaustion fix, waker resubmit, sendmsg EAGAIN handling.
  • kqueue: pending-write drain fixes, waker reliability.
  • Driver-tracing feature gate for optional per-event diagnostics.

Test infrastructure

  • 545 tests (161 Rust unit, 53 integration, 8 packet loss, 325 TypeScript).
  • 34 e2e scenarios (REST CRUD, file serving, SSE, streaming, concurrency, datagrams, server push).
  • 5-minute longhaul: H3 sustained at 24.6K req/s, QUIC at 45.6K streams/s (0 errors).
  • FFI boundary stress, packet loss simulation, heap profiling scripts.

Dependencies

Rust 1.94, napi-rs 3.8, quiche 0.26.1 (BoringSSL), pnpm.

Full changelog: https://github.com/currentspace/http3/blob/main/CHANGELOG.md#070

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