8.1.0-preview1

Issues

• NativeAOT support: get to zero warnings

  Up-for-Grabs 🙌
  Bug

  dotnet/SqlClient#1947 · Filter by author roji opened on Mar 7, 2023 · 8.1.0-preview1
  15

  

• Enable ConnectionPoolV2 by default

  DO NOT MERGE
  Unread
  dotnet/SqlClient#4589·mdaigle opened Aug 24, 2026 · Updated Oct 8, 2026·Draft
  2

  

• Improve error reporting when an application fails to obtain a connection from the pool

  Approved
  Feature

  dotnet/SqlClient#3545 · Filter by author David-Engel opened on Aug 5, 2025 · 8.1.0-preview1
  3

  

• Fix async cancellation failing to send TDS attention signal

  Author attention neededLocalization Needed
  Unread
  dotnet/SqlClient#4435·cheenamalhotra opened Jul 9, 2026 · Updated Nov 13, 2026
  95

  

• Async cancellation sends no attention signal once the server has flushed an info message (RAISERROR ... WITH NOWAIT)

  Area\AsyncRepro Available ✔️
  Bug

  dotnet/SqlClient#4424 · Filter by author akley opened on Jul 3, 2026 · 8.1.0-preview1
  2

  

• Expose SqlBatch commands on the command diagnostic payloads

  Public API 🆕
  Unread
  dotnet/SqlClient#4577·PetarJerinic opened Aug 22, 2026 · Updated Oct 20, 2026·Draft
  13

  

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

  Public API 🆕
  Bug

  dotnet/SqlClient#4088 · Filter by author paulmedynski opened on Mar 25, 2026 · 8.1.0-preview1
  2

• Modern PR pipeline does not exercise managed SNI for Unit/Functional tests

  Area\Engineering
  Task

  dotnet/SqlClient#4605 · Filter by author paulmedynski opened on Aug 27, 2026 · 8.1.0-preview1
  1

• Add symbol verification to OneBranch pipelines

  Area\Engineering
  Unread
  dotnet/SqlClient#4073·paulmedynski opened Mar 23, 2026 · Updated Oct 20, 2026·Draft
  49

• Redesign configurable retry logic assembly loading (dedicated ALC and/or explicit registration API)

  Area\Engineering
  Feature

  dotnet/SqlClient#4623 · Filter by author priyankatiwari08 opened on Sep 2, 2026 · 8.1.0-preview1
  3

  

• Reduce Azure SQL test scope in PR pipelines

  Area\Engineering
  Unread
  dotnet/SqlClient#4609·saurabh500 opened Aug 28, 2026 · Updated Oct 20, 2026·Draft
  10

  

• Add client certificate loopback authentication

  Localization NeededPublic API 🆕
  Unread
  dotnet/SqlClient#4556·JustinMDotNet opened Aug 19, 2026 · Updated Nov 6, 2026·Draft
  13

  

• Support ClientCertificate keyword in Connection String

  Approved
  Feature

  dotnet/SqlClient#4551 · Filter by author Aniruddh25 opened on Aug 18, 2026 · 8.1.0-preview1
  3

• Harden UDT assembly loading against server-supplied assembly names

  Localization Needed
  Unread
  dotnet/SqlClient#4591·cheenamalhotra opened Aug 24, 2026 · Updated Nov 6, 2026·Draft
  81

• Allow workload-balanced assignment for eligible fork pull requests

  Unread
  dotnet/SqlClient#4903·priyankatiwari08 opened Oct 22, 2026 · Updated Oct 29, 2026
  1

  

• Verify negotiated TDS 8.0 ALPN in managed SNI strict mode

  Localization Needed
  Unread
  dotnet/SqlClient#4851·priyankatiwari08 opened Oct 15, 2026 · Updated Nov 6, 2026·Draft
  13

  

• Simplify SqlClient packaging with SDK pack and a generated .NET Standard contract

  Approval NeededCode Health 💊Common Project 🚮Design Review NeededUp-for-Grabs 🙌
  Feature

  dotnet/SqlClient#4940 · Filter by author paulmedynski opened on Oct 28, 2026 · 8.1.0-preview1
  1

• Improve connection pool failure diagnostics

  Localization Needed
  Unread
  dotnet/SqlClient#4590·mdaigle opened Aug 24, 2026 · Updated Nov 6, 2026·Draft
  17

  

• Extend hotfix label automation to cover issues

  Unread
  dotnet/SqlClient#4741·mdaigle opened Sep 23, 2026 · Updated Oct 29, 2026
  99

• perf: refactor SqlBulkCopy async loops to async/await and eliminate per-row task allocations

  Author attention neededPerformance 📈
  Unread
  dotnet/SqlClient#4685·PauloHMattos opened Sep 13, 2026 · Updated Oct 30, 2026
  29

  

• Reject commands after SQL Server aborts their transaction

  Hotfix 6.1.9Hotfix 7.0.5Hotfix 7.1.3
  Unread
  dotnet/SqlClient#4857·sanjaysingh opened Oct 18, 2026 · Updated Nov 10, 2026
  60

  

• Packet multiplexing: async nvarchar(max) read returns corrupted value, throws ArgumentException or spins when the value starts in a packet with header ID 0

  Hotfix Candidate 🚑
  Bug

  dotnet/SqlClient#4925 · Filter by author MaceWindu opened on Oct 26, 2026 · 8.1.0-preview1
  15

  

• Send attention when a streamed TVP fails after the packet number wraps

  Unread
  dotnet/SqlClient#4993·priyankatiwari08 opened Nov 4, 2026 · Updated Nov 11, 2026
  4

  

• Fix multibyte ANSI parameter sizing across RPC and encrypted metadata

  Unread
  dotnet/SqlClient#4906·jscarle opened Oct 23, 2026 · Updated Nov 4, 2026
  40

  

• Harden Azure Key Vault trusted endpoint matching

  Area\AKV Provider
  Feature

  dotnet/SqlClient#4802 · Filter by author paulmedynski opened on Oct 7, 2026 · 8.1.0-preview1
  1