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Fix SPN using instance name instead of resolved port for Protocol.None and Protocol.Admin

Status: Draft (not ready).

dotnet/SqlClientnumber 4180

#4180 In dotnet/SqlClient;

· paulmedynski opened on Apr 10, 2026

Cleanup | OS-independent build of non-SNI types

Author attention neededPRs that require author to respond or make updates to PR.PRs that require author to respond or make updates to PR.

Status: Open (in progress).

dotnet/SqlClientnumber 4207

#4207 In dotnet/SqlClient;

· edwardneal opened on Apr 18, 2026

Add symbol verification to OneBranch pipelines

Area\EngineeringUse this for issues that are targeted for changes in the 'eng' folder or build systems.Use this for issues that are targeted for changes in the 'eng' folder or build systems.

Status: Draft (not ready).

dotnet/SqlClientnumber 4073

#4073 In dotnet/SqlClient;

· paulmedynski opened on Mar 23, 2026

SqlBatchCommand support CommandBehavior

Public API 🆕Issues/PRs that introduce new APIs to the driver.Issues/PRs that introduce new APIs to the driver.

Status: Open (in progress).

dotnet/SqlClientnumber 4125

#4125 In dotnet/SqlClient;

· campersau opened on Apr 1, 2026

Analysis for async performance issues

Area\Async

Status: Draft (not ready).

dotnet/SqlClientnumber 4128

#4128 In dotnet/SqlClient;

· paulmedynski opened on Apr 1, 2026

Fix database context loss on transparent reconnection

Status: Draft (not ready).

dotnet/SqlClientnumber 4130

#4130 In dotnet/SqlClient;

· paulmedynski opened on Apr 2, 2026

Feature | Add scaffolding for SSRP response parsing

Status: Open (in progress).

dotnet/SqlClientnumber 3741

#3741 In dotnet/SqlClient;

· edwardneal opened on Nov 1, 2025

Cleanup | Consolidate connection capability metadata

Code Health 💊Issues/PRs that are targeted to source code quality improvements.Issues/PRs that are targeted to source code quality improvements.

Status: Open (in progress).

dotnet/SqlClientnumber 3862

#3862 In dotnet/SqlClient;

· edwardneal opened on Dec 28, 2025

missing cleanup of CancellationTokenSource

Author attention neededPRs that require author to respond or make updates to PR.PRs that require author to respond or make updates to PR.

Code Health 💊Issues/PRs that are targeted to source code quality improvements.Issues/PRs that are targeted to source code quality improvements.

Status: Open (in progress).

dotnet/SqlClientnumber 4009

#4009 In dotnet/SqlClient;

· SimonCropp opened on Mar 6, 2026

Async opening of connections in parallel is slow/blocking

Area\Async

Performance 📈Issues that are targeted to performance improvements.Issues that are targeted to performance improvements.

Status: Open.

Bug

#601 In dotnet/SqlClient;

· OQO opened on Jun 12, 2020

Feature | Async friendly Always Encrypted support

ApprovedUse for Features approved for implementation.Use for Features approved for implementation.

Status: Open.

Feature

#3672 In dotnet/SqlClient;

· cheenamalhotra opened on Oct 8, 2025

SqlBatchCommand.CommandBehavior is unused

Status: Open.

Bug

#4083 In dotnet/SqlClient;

· campersau opened on Mar 24, 2026

Feature | Redesign the SqlClient Connection Pool to Improve Performance and Async Support

ApprovedUse for Features approved for implementation.Use for Features approved for implementation.

Area\Async

Performance 📈Issues that are targeted to performance improvements.Issues that are targeted to performance improvements.

Status: Open.

Feature

#3356 In dotnet/SqlClient;

· mdaigle opened on May 19, 2025

Introduce Async API counterparts for AE base class

Author attention neededPRs that require author to respond or make updates to PR.PRs that require author to respond or make updates to PR.

Public API 🆕Issues/PRs that introduce new APIs to the driver.Issues/PRs that introduce new APIs to the driver.

Status: Open (in progress).

dotnet/SqlClientnumber 3673

#3673 In dotnet/SqlClient;

· cheenamalhotra opened on Oct 8, 2025

remove sqlserver 7 and 2000 support

Author attention neededPRs that require author to respond or make updates to PR.PRs that require author to respond or make updates to PR.

Code Health 💊Issues/PRs that are targeted to source code quality improvements.Issues/PRs that are targeted to source code quality improvements.

Status: Open (in progress).

dotnet/SqlClientnumber 4015

#4015 In dotnet/SqlClient;

· SimonCropp opened on Mar 6, 2026

O(N^2) performance when reading XML with SequentialAccess

Performance 📈Issues that are targeted to performance improvements.Issues that are targeted to performance improvements.

Repro Available ✔️Issues that are reproducible with repro provided.Issues that are reproducible with repro provided.

Status: Open.

Bug

#1877 In dotnet/SqlClient;

· yaakov-h opened on Jan 4, 2023

SqlDataReader async read throws inconsistent exception types on disposal (IOException vs InvalidOperationException)

Public API 🆕Issues/PRs that introduce new APIs to the driver.Issues/PRs that introduce new APIs to the driver.

Status: Open.

Bug

#4088 In dotnet/SqlClient;

· paulmedynski opened on Mar 25, 2026

Service principal name on linux uses instance name instead of port when using SSRP

Status: Open.

Bug

#3566 In dotnet/SqlClient;

· Hakon opened on Aug 14, 2025

Consolidate OS detection to OsConstants

Code Health 💊Issues/PRs that are targeted to source code quality improvements.Issues/PRs that are targeted to source code quality improvements.

Status: Draft (not ready).

dotnet/SqlClientnumber 4255

#4255 In dotnet/SqlClient;

· paulmedynski opened on May 1, 2026

Feature | Prepare for OpenTelemetry spans

Approval NeededIssues/PRs that require approval from the maintainers before changes will be accepted.Issues/PRs that require approval from the maintainers before changes will be accepted.

Design Review Needed

StaleThe Issue or PR has become stale and will be automatically closed shortly if no activity occurs.The Issue or PR has become stale and will be automatically closed shortly if no activity occurs.

Status: Draft (not ready).

dotnet/SqlClientnumber 3914

#3914 In dotnet/SqlClient;

· edwardneal opened on Jan 25, 2026

Add BuildAll target

Area\EngineeringUse this for issues that are targeted for changes in the 'eng' folder or build systems.Use this for issues that are targeted for changes in the 'eng' folder or build systems.

Status: Open (in progress).

dotnet/SqlClientnumber 4290

#4290 In dotnet/SqlClient;

· paulmedynski opened on May 14, 2026

Add configurable idle connection timeout (ADO #39970)

Area\Connection PoolingUse this label to tag issues that apply to problems with connection pool.Use this label to tag issues that apply to problems with connection pool.

Author attention neededPRs that require author to respond or make updates to PR.PRs that require author to respond or make updates to PR.

Status: Open (in progress).

dotnet/SqlClientnumber 4295

#4295 In dotnet/SqlClient;

· priyankatiwari08 opened on May 19, 2026

Implement pool shutdown for ChannelDbConnectionPool and harden WaitHandleDbConnectionPool shutdown

Status: Draft (not ready).

dotnet/SqlClientnumber 4302

#4302 In dotnet/SqlClient;

· priyankatiwari08 opened on May 21, 2026

Skip redundant PR triggers (Draft<->Open state transitions)

Area\EngineeringUse this for issues that are targeted for changes in the 'eng' folder or build systems.Use this for issues that are targeted for changes in the 'eng' folder or build systems.

Status: Draft (not ready).

dotnet/SqlClientnumber 4303

#4303 In dotnet/SqlClient;

· paulmedynski opened on May 21, 2026

Tests | Address additional flaky tests

Author attention neededPRs that require author to respond or make updates to PR.PRs that require author to respond or make updates to PR.

Status: Open (in progress).

dotnet/SqlClientnumber 4305

#4305 In dotnet/SqlClient;

· edwardneal opened on May 21, 2026