chore(deps): update module github.com/lucas-clemente/quic-go to v0.45.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
github.com/lucas-clemente/quic-go	v0.25.0 -> v0.45.0

---

Release Notes

lucas-clemente/quic-go (github.com/lucas-clemente/quic-go)

v0.45.0

Compare Source

New Features

Prometheus

quic-go now exports a few Prometheus metrics, allowing users to get an aggregate picture of what's going on inside their QUIC stack. Currently, only a basic set of metrics is exposed, but we plan to track more metrics in the future (#​4554). Head to the documentation to learn how to enable metrics collection.

Prometheus metrics can be used (among others) to build Grafana dashboards, and we provide a sample Grafana dashboard in metrics/dashboard.

Tracing Handshake Progression using a custom context.Context

Users can now set and modify the context that's used on all callbacks called during the handshake, and returned from Connection.Context (#​4507 and #​4536). This allows identifying the connection as it progresses through the different handshake stages. The documentation has more details and code samples.

Better Path MTU Discovery

Path MTU Discovery is used to automatically determine the available MTU of the path, which allows us to send full-size packets. This is especially relevant for high-bandwidth transfers.

Our old PMTUD algorithm was susceptible to packet loss, leading to suboptimal results if an MTU probe packet experienced packet loss in the network. The new algorithm (#​4545) is now resilient to the consecutive loss of up to two probe packets.

Breaking Changes

• Connection.NextConnection now takes a context and correctly handles handshake failures (#​4551)
• qlog: DefaultTracer was renamed to DefaultConnectionTracer (#​4556)
• The ConnectionTracingKey is now deprecated. Use Transport.ConnContext to set your own tracing key (#​4532)

Fixes

• The server now correctly restores its QUIC transport parameters when resuming 0-RTT using a tls.Config that sets GetConfigForClient: (#​4550)

Changelog

• introduce Transport.ConnContext, use client's context on the connection by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4507
• deprecate the ConnectionTracingKey by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4532
• http3: fix flaky Extended CONNECT unit test by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4537
• remove unneeded stream context cancellation on shutdown by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4535
• ci: set timeout for jobs by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4538
• http3: fix another flaky Extended CONNECT test by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4539
• remove unused SetMax method of the mtuDiscoverer by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4543
• http3: use the connection, not the stream context, on the server side by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4510
• use a chan instead of a context to track handshake completion by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4547
• remove unused function parameter from qtls.SetupConfigForServer by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4549
• fix the server's 0-RTT rejection logic when using GetConfigForClient by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4550
• add some Prometheus metrics by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4534
• make Path MTU Discovery resilient to random packet loss by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4545
• add context to EarlyConnection.NextConnection, handle handshake failures by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4551
• pass a context to Transport.ConnContext by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4536
• metrics: simplify constructor for the default connection tracer by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4555
• qlog: rename DefaultTracer to DefaultConnectionTracer by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4556
• fix incorrect documentation for Config.DisablePathMTUDiscovery by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4558
• metrics: add an example Grafana dashboard by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4559

Full Changelog: quic-go/quic-go@v0.44.0...v0.45.0

v0.44.0

Compare Source

v0.44 contains a lot of fixes related to HTTP Datagrams, new logic to determine (and configure) the QUIC packet size, as well as a significant speedup of the various parsers.

HTTP Datagram-related Fixes

The last release introduced support for HTTP Datagrams (RFC 9297). This release resolves a number of problems we discovered in the initial implementation:

• reject sending of DATAGRAM frames that exceed the currently available MTU (https://github.com/quic-go/quic-go/pull/4497)
• http3: deadline errors are now ignored in stream state tracking (https://github.com/quic-go/quic-go/pull/4495)
• http3: refuse to send HTTP datagrams associated with a closed stream (https://github.com/quic-go/quic-go/pull/4488)
• http3: use the send stream context for tracking the stream state (https://github.com/quic-go/quic-go/pull/4489)
• http3: fix memory leak caused by stream state tracking (https://github.com/quic-go/quic-go/pull/4523). Thanks to @​GeorgeMac for debugging and fixing!

QUIC Packet Size and Path MTU Discovery

• The initial packet size is now configurable via quic.Config. Most users should not use this config option, but instead rely on Path MTU discovery (https://github.com/quic-go/quic-go/pull/4503)
• The client's initial packet size was increased to 1280 bytes (https://github.com/quic-go/quic-go/pull/4500)
• Respect the client's max_udp_payload_size transport parameter (https://github.com/quic-go/quic-go/pull/4514)
• qlog: add support for the mtu_updated event (https://github.com/quic-go/quic-go/pull/4517)

Speeding up Parsing the variable-length Integers

The QUIC varint parser was rewritten to act on byte slices instead of a bytes.Reader. This is significantly faster (https://github.com/quic-go/quic-go/pull/4475). The new parser is now used for parsing QUIC frames (https://github.com/quic-go/quic-go/pull/4484), the QUIC packet header (https://github.com/quic-go/quic-go/pull/4481), the QUIC transport parameters (https://github.com/quic-go/quic-go/pull/4483) and HTTP datagrams (https://github.com/quic-go/quic-go/pull/4478).

Other Notable Changes

• http3: ParseCapsule now returns an io.EOF (and not an io.UnexpectedEOF) if the underlying reader returns an io.EOF on the first byte (https://github.com/quic-go/quic-go/pull/4476)
• http3: ListenAndServe was renamed to ListenAndServeTLS (https://github.com/quic-go/quic-go/pull/4522). Thanks to @​ETZhangSX!
• http3: reserved frame types now cause a connection error, as required by the RFC (https://github.com/quic-go/quic-go/pull/4467)
• http3: pass the correct Connection to the ConnContext callback (https://github.com/quic-go/quic-go/pull/4480). Thanks to @​rthellend!

quic-go needs your support!

Is your project / company relying on quic-go?
Please consider funding the project. Any support is highly appreciated!

What's Changed

• build(deps): bump golangci/golangci-lint-action from 4 to 5 by @​dependabot in https://github.com/quic-go/quic-go/pull/4472
• http3: return an io.EOF when parsing a capsule fails on the first byte by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4476
• quicvarint: add a function to parse a varint from a byte slice by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4475
• http3: avoid allocation when parsing the datagram's quarter stream ID by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4478
• http3: Pass original Conn to ConnContext by @​rthellend in https://github.com/quic-go/quic-go/pull/4480
• http3: reject reserved frame types by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4467
• fix capture of loop variable in connection probe packet tests by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4486
• http3: refuse to send datagrams associated with a closed stream by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4488
• http3: use the stream context to detect when the send side is closed by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4489
• wire: use quicvarint.Parse to when parsing transport parameters by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4482
• wire: use quicvarint.Parse when parsing frames by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4484
• wire: refactor header parsing to use quicvarint.Parse by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4481
• wire: reduce allocations when parsing transport parameters by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4483
• fix incorrect reuse of UDP connection in handshake benchmark by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4491
• http3: fix race condition when creating state tracking stream by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4493
• ci: run benchmarks by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4492
• http3: ignore deadline errors when tracking QUIC stream states by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4495
• ci: update golangci-lint-action to v6 and golangci-lint to v1.58.0 by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4494
• ci: disable exhaustive linter for test files by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4499
• add an integration test for DPLPMTUD by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4498
• reject sending of DATAGRAM frames that exceed the current MTU by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4497
• wire: write configured value of max_udp_payload_size transport parameter by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4501
• increase initial packet size to 1280 bytes (for both IPv4 and IPv6) by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4500
• make the initial packet size configurable by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4503
• update all golang.org/x dependencies by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4506
• initialize the MTU discoverer when processing the transport parameters by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4514
• retry the MTU integration test up to 3 times by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4519
• logging / qlog: add support for DPLPMTUD by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4517
• http3: rename ListenAndServe to ListenAndServeTLS by @​ETZhangSX in https://github.com/quic-go/quic-go/pull/4522
• fix(http3): handle streamStateSendAndReceiveClosed in onStreamStateChange by @​GeorgeMac in https://github.com/quic-go/quic-go/pull/4523

New Contributors

• @​ETZhangSX made their first contribution in https://github.com/quic-go/quic-go/pull/4522

Full Changelog: quic-go/quic-go@v0.43.0...v0.44.0

v0.43.1

Compare Source

This is a patch release that fixes a regression when calling http3.Server.ConnContext introduced in v0.43.0.

Changelog

• https://github.com/quic-go/quic-go/pull/4480.

Full Changelog: quic-go/quic-go@v0.43.0...v0.43.1

v0.43.0

Compare Source

quic-go.net: Launching a new Documentation Site

With this release, we're launching a new documentation site for the quic-go projects (quic-go itself, HTTP/3, webtransport-go, and soon, masque-go): quic-go.net.

The documentation site aims to explain QUIC concepts and how they are made accessible using quic-go's API. This site replaces the wiki, and the ever-growing README files.

A lot of work has gone into the documentation already, but we're by no means done yet. The entire source is public in https://github.com/quic-go/docs/, and we're happy about community contributions.

HTTP Datagrams (RFC 9297)

This release adds support for HTTP Datagrams (RFC 9297), both on the client and on the server side (#​4452). HTTP Datagrams are used in WebTransport in CONNECT-UDP (RFC 9298), among others.

The new API for HTTP Datagrams is described on the new documentation page: HTTP Datagrams. The integration of HTTP Datagram support necessitated a comprehensive refactor of the HTTP/3 package, resulting in several breaking API changes listed below.

Breaking Changes

• quicvarint: functions now return an int instead the internal protocol.ByteCount (#​4365)
• http3: Server.SetQuicHeaders was renamed to SetQUICHeaders (#​4377)
• http3: Server.QuicConfig was renamed to QUICConfig (#​4384)
• http3: RoundTripper.QuicConfig was renamed to QUICConfig (#​4385)
• http3: RoundTripOpt.CheckSettings was removed (#​4416). Use the newSingleDestinationRoundTripper API instead.
• http3: the HTTPStreamer interface is now implemented by the http.ResponseWriter (and not the http.Request.Body) (#​4469)
• include the maximum payload size in the DatagramTooLargeError (#​4470)

Other Notable Changes

• GSO and ECN is disabled on kernel versions older than 5 (#​4456)
• http3: logging can be controlled using an slog.Logger (#​4449)
• http3: HEAD requests can now be sent in 0-RTT (#​4378)
• http3: duplicate QPACK encoder and decoder streams are not rejected as required by the RFC (#​4388)
• http3: Extended CONNECT are blocked until the server's SETTINGS are received, as required by the RFC (#​4450)
• http3: HTTP/3 client connections aren't removed if RoundTrip errors due to a cancelled context (#​4448). Thanks to @​GeorgeMac!
• http3: sniff Content-Type when flushing the ResponseWriter (#​4412). Thanks to @​WeidiDeng!
• The Context exposed on the quic.Stream is now derived from the connection's context (#​4414)
• The UDP send and receive buffer size was increased to 7 MiB (#​4455). Thanks to @​bt90!

Clarifications on the QUIC Stream State Machine

Calling CancelWrite after Close

After a long and fruitful discussion (#​4404), we decided to clarify that calling CancelWrite after Close on a SendStream (or a bidirectional stream) should cause a state transition from the "Data Sent" to the "Reset Sent" state, as described in section 3.1 of RFC 9000. This matches the current behavior of quic-go, however, it didn't match the API documentation (fixed in #​4419).

This means that stream data will not be delivered reliably if CancelWrite is called, and that this applies even if Close was called before.

Garbage Collection of Streams

This release also changes the way streams are garbage-collected (and the peer is granted additional limit to open a new stream), once they're not needed anymore, in a subtle way:

• for the send direction of streams: #​4445
• for the receive direction of a stream: #​4460

Thanks to @​sukunrt for extremely thorough and helpful reviews on both these PRs!

quic-go needs your support!

Is your project / company relying on quic-go?
Please consider funding the project. Any support is highly appreciated!

Changelog

• quicvarint: use int instead of internal protocol.ByteCount type by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4356
• http3: improve documentation for Server.SetQuicHeaders by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4376
• http3: make it possible to send HEAD requests in 0-RTT by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4378
• http3: don't modify any fields of the http.Request when doing 0-RTT by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4379
• http3: rename Server.SetQuicHeaders to Server.SetQUICHeaders by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4377
• add an integration test for 0-RTT GET requests by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4386
• http3: rename Server.QuicConfig to Server.QUICConfig by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4384
• http3: rename RoundTripper.QuicConfig to RoundTripper.QUICConfig by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4385
• http3: refactor the client's and server's unidirectional stream handling by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4387
• http3: reject duplicate QPACK decoder and encoder streams by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4388
• http3: introduce a way for the server to query the client's SETTINGS by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4389
• don't set the Allow0RTT flag for the client in the HTTP integration test by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4397
• http3: reference the correct RFCs in doc comments by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4399
• introduce a ConnectionTracingID type for the ConnectionTracingKey by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4400
• http3: pass tracing ID instead of quic.Connection to stream hijackers by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4401
• expose the connection tracing ID on the stream context by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4414
• http3: expose an OpenStream method on the RoundTripper by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4409
• http3: cancel reading on request stream if request processing fails by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4417
• http3: remove Settingser, StreamCreator, return Connection from Hijacker by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4425
• http3: expose a SingleDestinationRoundTripper by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4424
• http3: hide SendDatagram and ReceiveDatagram on the Connection by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4427
• fix documentation for CancelWrite after Close on the send stream by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4419
• http3: simplify buffering of small responses by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4432
• http3: simplify composition of the HTTP stream and request stream by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4433
• http3: remove Accept(Uni)Stream methods from the Connection interface by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4435
• http3: simplify tracking of content length by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4438
• http3: move length limiting to the body by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4439
• http3: fix flaky RoundTripper test by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4442
• http3: simplify response header writing by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4441
• http3: reuse clients on RoundTripOpt context canceled by @​GeorgeMac in https://github.com/quic-go/quic-go/pull/4448
• http3: use a log/slog Logger for logging by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4449
• http3: remove RoundTripOpt.CheckSettings by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4416
• catch spurious UDP sendmsg errors in multiplex integration test by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4451
• http3: check server SETTINGS before sending an Extended CONNECT request by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4450
• http3: process 1xx status codes by @​mchtech in https://github.com/quic-go/quic-go/pull/4437
• fix flaky server accept queue test by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4453
• http3: fix race condition when closing the RoundTripper by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4458
• Increase send/receive buffers to 7MiB by @​bt90 in https://github.com/quic-go/quic-go/pull/4455
• testutils: add a token parameter to ComposeInitialPacket by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4391
• flowcontrol: make it possible to call Abandon multiple times by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4459
• disable GSO and ECN on kernels older than version 5 by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4456
• delay completion of the send stream until the reset error was delivered by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4445
• delay completion of the receive stream until the reset error was read by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4460
• http3: fix race condition in client unit test by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4463
• http3: add support for HTTP Datagrams (RFC 9297) by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4452
• README: link to the new documentation site by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4464
• http3: rename Settings.EnableDatagram to EnableDatagrams by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4466
• http3: implement on the HTTPStreamer on the ResponseWriter, flush header by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4469
• include the maximum payload size in the DatagramTooLargeError by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4470
• http3: sniff Content-Type when flushing the ResponseWriter by @​WeidiDeng in https://github.com/quic-go/quic-go/pull/4412

New Contributors

• @​GeorgeMac made their first contribution in https://github.com/quic-go/quic-go/pull/4448
• @​mchtech made their first contribution in https://github.com/quic-go/quic-go/pull/4437

Full Changelog: quic-go/quic-go@v0.42.0...v0.43.0

v0.42.0

Compare Source

New Features

• added a qlog tracer for events that happen before / outside of established connection: #​4305

Notable Changes

• added a ClientHelloInfo.AddrVerified field: #​4360
• move callback controlling address verification (VerifySourceAddress) to the Transport: #​4253 and #​4362
• connections that are closed before being accepted are not removed from the server's accept queue: #​4245
• http3: added a RoundTripOpt.CheckSettings callback to check the server's SETTINGS: #​4355
• http3: send the HTTP/3 settings value for Extended CONNECT (RFC 9220): #​4341
• http3: don't modify the user's quic.Config to enable QUIC datagram support: #​4340

Fixes

• mitigate a memory exhaustion attack against QUIC's connection ID mechanism: #​4369
• don't delay acknowledgments for packets during the handshake: #​4279
• fix deadlock when closing both Listener and Transport: #​4332
• fix handling of IPv4-mapped IPv6 addresses: #​4309
• fix duplicate logging of the key_discarded event for Handshake packets: #​4274
• send CONNECTION_REFUSED when refusing connections: #​4250
• http3: tighten validation logic for the :protocol pseudo header: #​4261

What's Changed

• remove shutdown method on the Connection by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4249
• send the CONNECTION_REFUSED error when refusing a connection by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4250
• don't remove closed connections from the server's accept queue by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4245
• handshake: unexport Set{Read,Write}Key methods on the cryptoSetup by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4254
• handshake: fix documentation for updatableAEAD.SetWriteKey by @​putyWang in https://github.com/quic-go/quic-go/pull/4256
• add Transport config options to limit the number of handshakes by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4248
• remove the RequireAddressValidation callback from the Config by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4253
• fix incorrect statement about connection ID lengths in the Transport by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4247
• remove unneeded nil check for new connections in the server by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4260
• ci: update to Go 1.22rc2 by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4267
• fix flaky handshake limiting test by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4270
• http3: only use :protocol pseudo-header for Extended CONNECT by @​taoso in https://github.com/quic-go/quic-go/pull/4261
• fix flaky accept queue test by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4280
• fix flaky handshake limiting test by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4281
• only log the discarding of Handshake keys once by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4274
• testutils: add a perspective function parameter to ComposeInitialPacket by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4276
• fix flaky outgoing streams map test by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4283
• wire: remove FrameParser interface, expose FrameParser struct by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4284
• ackhandler: remove unused RTTStats from the received packet handler by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4287
• testutils: make the package public by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4290
• ci: remove unused depguard check for qtls by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4291
• ci: make Codecov ignore testutils and testdata by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4292
• testutils: expose aliases for all frames by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4293
• ackhandler: don't delay ACKs for Initial and Handshake packets by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4288
• protocol: rename VersionNumber to Version by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4295
• wire: optimize generation of Version Negotiation packets by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4278
• protocol: don't capitalize Perspective.String by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4296
• qlog: remove unneeded mutex from the ConnectionTracer by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4299
• qlog: rename qlog.go to connection_tracer.go by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4301
• qlog: disentangle the ConnectionTracer from the qlog writer by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4300
• logging: add a Debug function to the Tracer by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4297
• logging: add a Close function to the Tracer by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4298
• don't enqueue stream when receiving reordered MAX_STREAM_DATA frames by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4269
• fix flaky 0-RTT packet drop test by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4306
• handshake: validate HKDF-Expand-Label against crypto/tls implementation by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4311
• qlog: rename generation to key_phase on key_updated and key_discarded by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4315
• README: Add frp to list of projects by @​bt90 in https://github.com/quic-go/quic-go/pull/4316
• ci: update to Go 1.22.0 by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4312
• avoid lock contention when accepting new connections by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4313
• ci: update Codecov action to v4 by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4321
• don't preallocate the slice for STREAM frames when composing a packet by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4314
• handshake: add benchmarks for the Initial AEAD by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4320
• only check for stateless resets if packet doesn't belong to a connection by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4322
• qtls: protect the tls.ClientSessionCache implementation with a mutex by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4319
• ci: update golangci-lint to v1.56.1 and golangci-lint action to v4 by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4326
• remove unused GetVersion function from quicConn interface by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4327
• reenable previously disabled server unit test by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4328
• remove unused getPerspective function from quicConn interface by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4329
• remove unused perspective arg from packetHandlerMap.ReplaceWithClosed by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4330
• http3: don't automatically set RoundTripper.QuicConfig.EnableDatagrams by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4340
• http3: send SETTINGS_ENABLE_CONNECT_PROTOCOL (for Extended CONNECT) by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4341
• http3: reject duplicate control streams opened by the server by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4342
• http3: reject duplicate control streams opened by the client by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4344
• ci: enable Dependabot for GitHub Actions by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4343
• server: fix deadlock when closing concurrently with transport by @​sukunrt in https://github.com/quic-go/quic-go/pull/4332
• build(deps): bump actions/upload-artifact from 3 to 4 by @​dependabot in https://github.com/quic-go/quic-go/pull/4346
• build(deps): bump docker/build-push-action from 4 to 5 by @​dependabot in https://github.com/quic-go/quic-go/pull/4347
• build(deps): bump docker/login-action from 2 to 3 by @​dependabot in https://github.com/quic-go/quic-go/pull/4348
• build(deps): bump docker/setup-qemu-action from 2 to 3 by @​dependabot in https://github.com/quic-go/quic-go/pull/4345
• build(deps): bump docker/setup-buildx-action from 2 to 3 by @​dependabot in https://github.com/quic-go/quic-go/pull/4349
• handshake: embed the mask as an array into the aesHeaderProtector by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4324
• handshake: optimize AEAD handling for long header sealers and openers by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4323
• unmap IPv4-mapped IPv6 addresses by @​thijsvandien in https://github.com/quic-go/quic-go/pull/4309
• docs: improve API documentation for OpenStreamSync by @​wlynxg in https://github.com/quic-go/quic-go/pull/4352
• add a qlog tracer for events outside of QUIC connections by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4305
• remove unused ReceiveStream.CloseRemote method by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4357
• update GoMock to v0.4.0 by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4361
• add an AddrVerified field to the ClientHelloInfo by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4360
• http3: add a RoundTripOpt to check the server's SETTINGS frame by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4355
• use Transport.VerifySourceAddress to control the Retry Mechanism by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4362
• close connection when an abnormally large number of frames are queued by @​marten-seemann in https://github.com/quic-go/quic-go/pull/4369

New Contributors

• @​putyWang made their first contribution in https://github.com/quic-go/quic-go/pull/4256
• @​taoso made their first contribution in https://github.com/quic-go/quic-go/pull/4261
• @​thijsvandien made their first contribution in https://github.com/quic-go/quic-go/pull/4309
• @​wlynxg made their first contribution in https://github.com/quic-go/quic-go/pull/4352

Full Changelog: quic-go/quic-go@v0.41.0...v0.42.0

v0.41.0

Compare Source

New Features

• When calling quic.Connection.SendDatagram, we now queue up to 32 DATAGRAMs before blocking this method: #​4222. This should lead to significant performance improvements for applications that send a lot of datagrams.
• DATAGRAM frames that don't fit into a packet (at the current MTU) are now dropped: #​4221.
• http3: The remote address (as a net.Addr) can now be obtained from the HTTP/3 request context using the http3.RemoteAddrContextKey: #​4208. Thanks to @​oncilla!
• http3: When an http.Handler panics, the stream is now reset: #​4181. Thanks to @​WeidiDeng!
• http3: The http3.Server now has a ConnContext function, working analogously to http.Server.ConnContext: #​4230. Thanks to @​rthellend!
• logging: Information about the negotiated ALPN is logged using logging.ConnectionTracer.ChoseALPN: #​4216. Thanks to @​birneee!
• qlog: The package now provides an implementation of the quic.Config.ConnectionTracer callback that reads the QLOGDIR environment variable, and writes qlogs to that directory. Thanks to @​birneee!

Breaking Changes

• This release drops support for Go 1.20 (#​4195). We decided to support the old Go version a little bit earlier than usual (before the Go 1.22 release) this time, since this allowed us to completely remove our custom TLS fork that was necessary before crypto/tls gained QUIC support in Go 1.21. If you rely on Go 1.20, you can continue using the v0.40.1 release.
• The DroppedPacket callback on the logging.ConnectionTracer now contains the packet number of the dropped packet, allowing for better logging of duplicate packets: #​4171

Other Changes

• Only attempt 0-RTT resumption if the session-ticket allowed 0-RTT: #​4183
• http3: The context cancelation error is now returned from RoundTrip: #​4203
• http3: use the AdditionalSettings for on HTTP/3 requests: #​4156

Please support quic-go!

Is your project / company relying on quic-go?
Please consider funding the project. Any support is highly appreciated!

Changelog

• congestion: don't use floating point math when calculating pacing times by @​marten-seemann in [https://github.com/congestion: don't use floating point math when calculating pacing times quic-go/quic-go#4148](https://togit

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.

[renovate]

⚠ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: old/config/go/go.sum

Command failed: go get -d -t ./...
go: github.com/lucas-clemente/quic-go@v0.24.0 (replaced by github.com/lucas-clemente/quic-go@v0.43.1): parsing go.mod:
	module declares its path as: github.com/quic-go/quic-go
	        but was required as: github.com/lucas-clemente/quic-go

[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: old/config/go/go.sum

Command failed: go get -d -t ./...
go: github.com/lucas-clemente/quic-go@v0.24.0 (replaced by github.com/lucas-clemente/quic-go@v0.45.0): parsing go.mod:
	module declares its path as: github.com/quic-go/quic-go
	        but was required as: github.com/lucas-clemente/quic-go