MsQuic v2.0.1

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Signed Windows binaries and NuGet packages are available. Signed Linux package are also available.

Official (v1) RFC and draft-29 are supported by this release.

Breaking Changes

• Fix QUIC_SETTINGS across different versions (Make settings configuration backwards compatible in the future #2271)
• Remove synchronous StreamStart (Remove Sync Stream Start #2312)
• Remove Level from SetParam/GetParam (Remove Level from SetParam/GetParam #2322)
• Add new datagram send state enum (Add Unknown/Default Datagram Send State #2342)
• Add support for async listener stop (Async Listener Stop #2346)
• Refactor custom CID prefix (Connection ID Prefixes #2363)
• Make StreamReceiveComplete not fail (Make StreamReceiveComplete Not Fail #2371)

Upgrade Notes

The following changes will be necessary for apps that upgrade from v1.* to v2.0:

• Remove any usage of QUIC_STREAM_START_FLAG_ASYNC, replacing with QUIC_STREAM_START_FLAG_NONE if no other flags are used. If the flag was not used before, the app code must handle the call not blocking any more.
• Remove all Level parameters passed to GetParam or SetParam.
• Ensure the app handles ListenerStop not blocking any more. ListenerClose still blocks.
• No more need to check for a return code from StreamReceiveComplete.
• QUIC_ADDRESS_FAMILY_IPV6 has been changed to be platform specific rather then always windows values. For C/C++ consumers this is only a binary breaking change. For Interop consumers, the value will change for linux and macOS.

Other Changes

• Various Linux build and packaging improvements (Fixes Linux Package Signing #2090, Update Official Linux Builds to Use System Crypto #2092, Fix invalid yaml in onebranch linux build #2097)
• Various OpenSSL improvements and refactoring (Remove direct openssl dependencies from platform certificate code #2098, Enable use of OpenSSL 3 without deprecated functions #2083, Fix leak in OpenSSL PKCS12 parsing. #2111, Fix openssl 3 cmake build issues #2154)
• Various certificate handling improvements and refactoring (Fix memory leak when indicated certificate is rejected by app #2155, Properly handle empty certificate case in schannel cert indication #2158, Add portable certificate indication support to schannel #2160, Fix portable certificate flag name #2164)
• Mirroring and OneBranch build infrastructure improvements (Cleanup onebranch builds. #2093, Fix invalid yaml in onebranch linux build #2097, GitHub Action for Repo Mirroring #2125, Fix Sync Mirror Script #2127, Debug Mirroring #2128, Update Mirroring to Fetch All Commits #2129)
• Datapath refactoring for low latency work (Worker Optimizations for Latency #2107, Refactor Worker Exectution in to Generic Design #2122, Create CXPLAT_ROUTE to replace QUIC_PATH::LocalAddress and QUIC_PATH::RemoteAddress #2130, Change CXPLAT_TUPLE field of CXPLAT_RECV_DATA to CXPLAT_ROUTE #2132, Account for Negative Queue Delay #2134, Copy Full Route into Path #2161, Pass CXPLAT_ROUTE to CxPlatSendDataAlloc #2168)
• Various WAN perf improvements (Improve Pacing Send Logic #2266, CUBICbis updates #2269, Collect WAN Perf Logs and Fix Issues Found with them #2270, General CC Improvements #2296, Don't Double CWND Reduction in Persistent Congestion #2304, Prevent exponential CongestionWindow growth beyond SlowStartThreshold #2309, Larger Max Connection Receive Queue #2343)
• Updates for ACK Frequency Draft-2 (Updates for ACK Frequency Draft 2 #2347)
• Performance tool improvements (Fix bugs in GetExtraData in failure case #2110, Fix incorrect requests size in QuicHandleRpsClient #2113, Require specific data to be received to shutdown secnetperf #2166)
• Visual Studio 2022 support (Add support for easily building on VS 2022, add a VS 2022 AZP build #2119)
• Interop layers for Rust and C# (Initial Rust Support #1832, Implements a few missing functions on the Rust API and minor fixes ma… #2100, Initial .NET Support #1917)
• Update OpenSSL to 1.1.1m (Update to OpenSSL_1_1_1m+quic #2229)
• Various documentation improvements
• Added scorecard and dependabot support (Create scorecards-analysis.yml #2310)
• Fix macOS datapath asserting in an initialization race (Set socket options before binding socket on kqueue data path #2398)
• Add QUIC_STATISTICS_V2 parameter (QUIC_STATISTICS_V2 #2386)

Changes since v2.0.0

• Infrastructure and automation fixes
• Fix for kqueue shared EC (Fix kqueue timeout with shared ec mode (#2504) #2510)
• Extra Protection Around Stream Send Queue (release/2.0 CP - Extra Protection Around Stream Send Queue #2463 #2477)
• Fix for FC issue with small streams (release/2.0 CP - Accumulator logic for MAX_DATA updates #2553 #2555)

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This discussion was created from the release MsQuic v2.0.1.