Most Notable Changes

This release adds support for QUIC v2 and adds an API for WebTransport to the http3 package.

What's Changed

• remove unneeded network from custom dial function used in HTTP/3 by @marten-seemann in #3368
• extend the HTTP/3 API for WebTransport support by @marten-seemann in #3362
• add LocalAddr and RemoteAddr functions to http3.StreamCreator by @marten-seemann in #3384
• implement HTTP/3 unidirectional stream hijacking by @hareku in #3389
• Expose quic server closed err by @hareku in #3395
• protect against concurrent use of Stream.Read by @marten-seemann in #3380
• protect against concurrent use of Stream.Write by @marten-seemann in #3381
• reduce flakiness of deadline integration tests by @marten-seemann in #3383
• fix deadlock on concurrent http3.Server.Serve and Close calls by @marten-seemann in #3387
• update docs to reflect that we support RFC 9221 (Unreliable Datagrams) by @marten-seemann in #3382
• fix parsing of request path for Extended CONNECT requests by @marten-seemann in #3388
• remove warning comments of stable implementation by @hareku in #3399
• Clone TLS conf in newClient by @betamos in #3400
• don't set receive buffer if it is already large enough by @dchaofei in #3407
• remove error return value from ComposeVersionNegotiation by @dchaofei in #3410
• do not embed http.Server in http3.Server by @tie in #3397
• don't close the request stream when http3.DataStreamer was used by @marten-seemann in #3413
• introduce a http3.RoundTripOpt to prevent closing of request stream by @marten-seemann in #3411
• don't send path MTU probe packets on a timer by @marten-seemann in #3423
• don't ignore errors that occur when the TLS ClientHello is generated by @marten-seemann in #3424
• make it possible to parse a varint at the end of a reader by @marten-seemann in #3428
• add test for bidirectional stream hijacker by @marten-seemann in #3434
• pass frame / stream type parsing errors to the hijacker callbacks by @marten-seemann in #3429
• Change "HTTP/3" to "HTTP/3.0". by @aaronriekenberg in #3439
• always reset header buffer, even when QPACK encoding fails by @marten-seemann in #3436
• update qtls to include the recent session ticket changes to crypto/tls by @marten-seemann in #3443
• remove the http3.DataStreamer by @marten-seemann in #3435
• allow HTTP clients and servers to take over the request stream by @marten-seemann in #3437
• implement QUIC v2 by @marten-seemann in #3432
• make the keep alive interval configurable by @nmldiegues in #3444
• fix flaky HTTP/3 request body test by @marten-seemann in #3447
• only set DF for sockets that can handle it by @nmldiegues in #3448
• dedupe Alt-Svc header values by @mattrobenolt in #3461
• update for Go 1.19beta1 by @marten-seemann in #3460

New Contributors

• @betamos made their first contribution in #3400
• @dchaofei made their first contribution in #3407
• @tie made their first contribution in #3397
• @nmldiegues made their first contribution in #3444
• @mattrobenolt made their first contribution in #3461

Full Changelog: v0.27.0...v0.28.0

Changelog

• #3443

Full Changelog: v0.27.1...v0.27.2

Changelog

• #3423

Most Notable Changes

This release contains a big breaking change: We renamed the quic.Session to quic.Connection. The term "session" was used in gQUIC, but is not used in the QUIC RFC any more. Instead, it's called a "connection" there. We are aware that this API change will cause breakage for downstream users, but it had to be done sooner or later.

What's Changed

• improve code coverage of random number generator test by @marten-seemann in #3358
• remove parser logic for HTTP/3 DUPLICATE_PUSH frame by @marten-seemann in #3356
• remove the SkipSchemeCheck RoundTripOpt by @marten-seemann in #3353
• add support for the Extended CONNECT method by @marten-seemann in #3357
• update HTTP/3 Datagram to draft-ietf-masque-h3-datagram-07 by @marten-seemann in #3355
• respect the request context when dialing by @marten-seemann in #3359
• rename the Session to Connection by @marten-seemann in #3361
• remove nextdns from list of projects using quic-go by @ignoramous in #3363
• improve the error thrown when building with an unsupported Go version by @marten-seemann in #3364
• add support for serializing Extended CONNECT requests by @marten-seemann in #3360
• stop using the deprecated net.Error.Temporary, update golangci-lint to v1.45.2 by @marten-seemann in #3367

New Contributors

• @ignoramous made their first contribution in #3363

Full Changelog: v0.26.0...v0.27.0

Most Notable Changes

This release

• fixes a problem with Path MTU Discovery (#3327)
• adds an environment variable to turn off the receive buffer warning (QUIC_GO_DISABLE_RECEIVE_BUFFER_WARNING)
• adds http3.Server.ServeListener to allow switching http3.Servers on top of the same quic.Listener
• adds support for Go 1.18

What's Changed

• sendQueue: ignore "datagram too large" error by @zllovesuki in #3328
• add env to disable the receive buffer warning by @arashpayan in #3339
• move set DF implementation to separate files & avoid the need for OOBCapablePacketConn by @tobyxdd in #3334
• don't print a receive buffer warning for closed connections by @marten-seemann in #3346
• update for Go 1.18 by @marten-seemann in #3345
• Implement http3.Server.ServeListener by @renbou in #3349
• avoid recursion when skipping unknown HTTP/3 frames by @marten-seemann in #3354
• Advertise multiple listeners via Alt-Svc and improve perf of SetQuicHeaders by @renbou in #3352

New Contributors

• @zllovesuki made their first contribution in #3328
• @arashpayan made their first contribution in #3339
• @renbou made their first contribution in #3349

Full Changelog: v0.25.0...v0.26.0

What's Changed

• add support for Go 1.18 by @marten-seemann in #3298
• add a AllowConnectionWindowIncrease config option by @marten-seemann in #3317

New Contributors

• @birneee made their first contribution in #3310
• @user8446 made their first contribution in #3315

Full Changelog: v0.24.0...v0.25.0

This patch release fixes a race condition when Stream.Read and Stream.CancelRead are called concurrently (#3239).

Features

• use ReadBatch to read multiple UDP packets from the socket with a single syscall
• add a config option (Config.DisableVersionNegotiationPackets) to disable sending of Version Negotiation packets

Breaking Changes

• drop support for QUIC draft versions 32 and 34
• remove the RetireBugBackwardsCompatibilityMode, which was intended to mitigate a bug when retiring connection IDs in quic-go in v0.17.2 and ealier

Other Notable Changes

• fix busy-looping caused by a certain loss pattern (#3231)
• fix behavior of exported errors when using errors.Is (#3215)
• update qtls to include the fix for the recently discovered crypto/tls panic