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Issues

Support Client Migration (Client Side)
#1946 · nibanks opened on Aug 27, 2021
5

Publish MsQuic to Azure Linux 4.0
microsoft/msquic#6413 · opened on Oct 23, 2026
Client derives Initial keys from the server's SCID after a v1 server Initial, breaking compatible version negotiation to v2
Bug
microsoft/msquic#6407 · opened on Oct 20, 2026
2
[CI - FAILURE]: / Basic.TestVersionStorage (msquictest.exe)
Bug
microsoft/msquic#6392 · opened on Oct 13, 2026
Update reliable reset to current RESET_STREAM_AT wire format for interoperability
Task
microsoft/msquic#6376 · opened on Oct 12, 2026
1
Listener close does not release the UDP endpoint synchronously: deferred socket close on kqueue/epoll, and bindings kept by connections until QuicConnFree
Bug
microsoft/msquic#6374 · opened on Oct 11, 2026
1
[CI - FAILURE]: / PlatformTest.EventQueueWorker (msquicplatformtest.exe)
Bug
microsoft/msquic#6368 · opened on Oct 7, 2026
[Crates.IO] When will you be restarting publishing updates on crates.io
Task
microsoft/msquic#6366 · opened on Oct 6, 2026
1
DOS_MODE_CHANGED callback can deadlock when calling ListenerStop
Bug
microsoft/msquic#6361 · opened on Oct 5, 2026
release/2.5 is missing the connection-pool data race fix (#6114) that was backported to release/2.6
Task
microsoft/msquic#6360 · opened on Oct 3, 2026
Custom Execution / Processor Map: Connection dispatch collapses to a single partition causing severe worker imbalance
Bug
microsoft/msquic#6353 · opened on Oct 1, 2026
Use new parameter to return BufferLength
Task
microsoft/msquic#6348 · opened on Sep 30, 2026
App verifier must be used to validate test passes
Task
microsoft/msquic#6347 · opened on Sep 29, 2026
1
After a peer IP migration, a datagram-using connection spins and stops sending: PathId is never recorded on sent packets, the datagram limit is not recomputed on a path switch, and old-path losses throttle the new path's congestion window
Bug
microsoft/msquic#6339 · opened on Sep 27, 2026
1
ACK_FREQUENCY: max_ack_delay ratchets up by the timer resolution on every exchange, and PTO keeps using the handshake max_ack_delay
Bug
microsoft/msquic#6334 · opened on Sep 25, 2026
0-RTT rejection after reduced initial_max_data can underflow connection flow-control accounting and emit over-limit STREAM bytes
Bug
microsoft/msquic#6311 · opened on Sep 7, 2026
3
RegistrationClose frees a QUIC_WORKER_POOL while IsExternal workers' ExecutionContexts are still linked into the external CXPLAT_WORKER_POOL, when MsQuicLib.CustomExecutions is set
microsoft/msquic#6308 · opened on Sep 5, 2026
[CI - FAILURE]: / AppData_WithSendArgs.Send_134 (msquictest)
Bug
microsoft/msquic#6290 · opened on Sep 1, 2026
1
[CI - FAILURE]: / Handshake_WithHandshakeArgs4.RandomLossResume_1 (msquictest.exe)
Bug
microsoft/msquic#6278 · opened on Aug 28, 2026
1
macOS: intermittent CONNECTION_IDLE during handshake on loopback under sustained connect load
Bug
microsoft/msquic#6265 · opened on Aug 25, 2026
2
The test CredValidation.ConnectValidClientCertificate fails intermittently on Server 2025
Bug
microsoft/msquic#6264 · opened on Aug 24, 2026
Support Raw Public Key (RPK) as described in RFC 7250.
Feature
microsoft/msquic#6245 · opened on Aug 21, 2026
Zero-length StreamSend leaves QUIC_STREAM_SEND_FLAG_DATA set without a flush, permanently wedging the stream
Bug
microsoft/msquic#6243 · opened on Aug 20, 2026
4
[CI - FAILURE]: / Handshake_WithHandshakeArgs4.RandomLossResumeRejection_2 (msquictest.exe)
Bug
microsoft/msquic#6242 · opened on Aug 19, 2026
2.6.0 : Visual Studio : some warnings as errors
Bug
microsoft/msquic#6234 · opened on Aug 14, 2026
8
[CI - FAILURE]: stress-Debug-linux-ubuntu-24.04-x64-quictls-SanitizeAddress (spinquic)
Bug
microsoft/msquic#6228 · opened on Aug 13, 2026