Issues

• [7.0] Backport #4843

  🆕 Triage Needed
  dotnet/SqlClient#4847 · Filter by author mdaigle opened on Oct 14, 2026 · 7.0.4

• [7.1] Backport #4843

  🆕 Triage Needed
  dotnet/SqlClient#4846 · Filter by author mdaigle opened on Oct 14, 2026 · 7.1.2
  1

• [6.1] Backport #4843

  🆕 Triage Needed
  dotnet/SqlClient#4845 · Filter by author mdaigle opened on Oct 14, 2026 · 6.1.8

• Using a vulnerable version of System.Security.Cryptography.Pkcs (CVE-2026-70162, CVE-2026-84008)

  Hotfix Candidate 🚑Hotfix 6.1.8Hotfix 7.0.4Hotfix 7.1.2
  dotnet/SqlClient#4843 · Filter by author jeffska opened on Oct 14, 2026 · 8.0.0-preview1
  12

  

• TLS handshake has no timeout, one stalled handshake can stop a pool from creating any new connections indefinitely.

  Area\Connectivity
  Bug

  dotnet/SqlClient#4834 · Filter by author LukeButters opened on Oct 13, 2026
  2

  

• ref/ assemblies do not match implementation assembly API surfaces

  Bug

  dotnet/SqlClient#4826 · Filter by author edwardneal opened on Oct 10, 2026
  2

• SqlBatch.ValidateExecuteCommandBehavior XML comment says NotSupportedException but code throws ArgumentOutOfRangeException

  dotnet/SqlClient#4823 · Filter by author dlevy-msft-sql opened on Oct 9, 2026 · 8.0.0-preview1
  1

  

• Harden Azure Key Vault trusted endpoint matching

  Area\AKV Provider
  Feature

  dotnet/SqlClient#4802 · Filter by author paulmedynski opened on Oct 7, 2026 · 8.0.0-preview1
  1

  

• Proposal: generate sync attestation methods from the async ones with a source generator

  dotnet/SqlClient#4799 · Filter by author virzak opened on Oct 7, 2026
  3

• Bump dependency versions for 8.0.0

  Task

  dotnet/SqlClient#4797 · Filter by author mdaigle opened on Oct 6, 2026 · 8.0.0-preview1
  1

• Replace internal connection pool state enum with a boolean

  Feature

  dotnet/SqlClient#4795 · Filter by author priyankatiwari08 opened on Oct 6, 2026
  1

  

• Regression since 6.1.4 / 5.1.9: "Nullable object must have a value" from SqlStatistics.ReleaseAndUpdateExecutionTimer with concurrent commands on a MARS connection

  Regression 💥
  Bug

  dotnet/SqlClient#4778 · Filter by author PspInsFws opened on Oct 2, 2026
  2

  

• SqlDataReader.GetFieldValue<byte[]>() cannot be used to read a native SQL Server JSON column.

  Bug

  dotnet/SqlClient#4758 · Filter by author KyMback opened on Sep 26, 2026
  2

  

• Pool pruning can retire a pool during physical connection creation and cause unexpected transaction promotion (reproduces on 6.1 V1)

  Area\Connection Pooling
  Bug

  dotnet/SqlClient#4755 · Filter by author priyankatiwari08 opened on Sep 25, 2026 · 8.0.0-preview1
  1

  

• Retry async pool acquisition in the connection factory after pool shutdown

  Feature

  dotnet/SqlClient#4720 · Filter by author mdaigle opened on Sep 22, 2026
  1

• Ensure channel-pool shutdown reports shutdown rather than timeout

  Bug

  dotnet/SqlClient#4719 · Filter by author mdaigle opened on Sep 22, 2026
  1

• Connection pooling/Windows Impersonation issue under replenishment

  Bug

  dotnet/SqlClient#4717 · Filter by author PeterLGerrard-Redgate opened on Sep 21, 2026 · 8.0.0-preview1
  2

  

• [aw] SqlClient Issue Auto-Triage reported incomplete result

  agentic-workflows
  dotnet/SqlClient#4716 · Filter by author github-actions opened on Sep 21, 2026
  2

  

• Disable ICR separately from connect retry count

  Feature

  dotnet/SqlClient#4709 · Filter by author jhudsoncedaron opened on Sep 17, 2026
  8

• [aw] SqlClient Issue Auto-Triage reported incomplete result

  agentic-workflows
  dotnet/SqlClient#4704 · Filter by author github-actions opened on Sep 17, 2026
  23

  

• Deadlock when a cancelled OpenAsync enlists in an ambient TransactionScope (Pooling=false)

  Area\Connectivity
  Bug

  dotnet/SqlClient#4696 · Filter by author SimonCropp opened on Sep 16, 2026
  3

• Early cancellation of a table-lock-blocked INSERT can remain pending until holder release

  dotnet/SqlClient#4691 · Filter by author bullmurf opened on Sep 15, 2026
  3

• Managed SNI + MARS: unobserved NullReferenceException in SniTcpHandle.ReceiveAsync when the physical connection is disposed while the demuxer is still receiving (reliable repro)

  Repro Available ✔️
  Bug

  dotnet/SqlClient#4679 · Filter by author billpeet opened on Sep 11, 2026 · 8.0.0-preview1
  1

  

• SqlException.IsTransient returns false for TCP Provider error 35 (broken pipe) — transport-level failures should be considered transient

  dotnet/SqlClient#4665 · Filter by author Crownpack07 opened on Sep 9, 2026
  3

• Enable UseOverallConnectTimeoutForPoolWait by default in 8.0

  Area\Connection Pooling
  Task

  dotnet/SqlClient#4642 · Filter by author mdaigle opened on Sep 3, 2026 · 8.0.0-preview1
  2