The Azure SDK team is pleased to announce our February 2026 client library releases.

34 packages released this month.

Stable Packages (9)

  • App Configuration

  • Core - Client - Core

  • OpenTelemetry Exporter

  • Resource Management - Compute

  • Resource Management - Network

  • Resource Management - Network Cloud

  • Resource Management - PostgreSQL

  • System.ClientModel

  • WebJobs Extensions - Web PubSub

Patch Updates (3)

  • Communication Call Automation

  • Core - Client - Core

  • Resource Management - PostgreSQL

Beta Packages (14)

  • Communication Call Automation

  • Compute Batch

  • Provisioning

  • Provisioning - App Containers

  • Resource Management - Edgeactions

  • Resource Management - Fileshares

  • Storage - Blobs

  • Storage - Blobs Batch

  • Storage - Blobs ChangeFeed

  • Storage - Common

  • Storage - Files Data Lake

  • Storage - Files Share

  • Storage - Queues

  • unknown

Release highlights

App Configuration 1.8.0 Changelog

Features Added

  • Added new methods, CheckConfigurationSettings and CheckConfigurationSettingsAsync, which can be used to check settings from the Azure App Configuration store using HEAD requests, returning only headers without the response body. #54669

Communication Call Automation 1.5.1 Changelog

Features Added

  • Support for MicrosoftTeamsAppIdentifier CommunicationIdentifier

Communication Call Automation 1.6.0-beta.2 Changelog

Features Added

  • Support for MicrosoftTeamsAppIdentifier CommunicationIdentifier

Compute Batch 1.0.0-beta.5 Changelog

Breaking Changes

  • Removed DataDisk.StorageAccountType. Use DataDisk.ManagedDisk.StorageAccountType instead

Core - Client - Core 1.51.0 Changelog

Features Added

  • Added core support for Microsoft.Extensions.Configuration and Microsoft.Extensions.DependencyInjection.
  • Implements support for client certificate rotation in the Azure.Core transport layer to enable dynamic token binding scenarios. The changes allow transport instances to be updated with new client certificate configurations at runtime without requiring full pipeline reconstruction.

Bugs Fixed

  • Fixed NullReferenceException when calling GetHashCode() on default(AzureLocation).

Core - Client - Core 1.51.1 Changelog

Features Added

  • Update the APIs for Microsoft.Extensions.Configuration and Microsoft.Extensions.DependencyInjection to enable Azure.Identity use cases.
  • Updated BCL dependencies to 10.x.

OpenTelemetry Exporter 1.6.0 Changelog

Other Changes

  • The customer-facing SDK stats feature metric names have been updated to match the stable specification.
  • Metric names changed: preview.item.success.count → Item_Success_Count, preview.item.dropped.count → Item_Dropped_Count, preview.item.retry.count → Item_Retry_Count.
  • New environment variable: To enable, set environment variable APPLICATIONINSIGHTS_SDKSTATS_DISABLED=false.
  • The old environment variable APPLICATIONINSIGHTS_SDKSTATS_ENABLED_PREVIEW is no longer recognized.

Provisioning 1.5.0-beta.1 Changelog

Features Added

  • Added BicepMetadata class that provides a clean, type-safe way to set Bicep metadata on resources:
  • Description - Adds @description('...') decorator
  • BatchSize - Adds @batchSize(n) decorator for loop deployments
  • OnlyIfNotExists - Adds @onlyIfNotExists() decorator
  • Added BicepMetadata property on ProvisionableResource

Bugs Fixed

  • Fixed PropertyName in Self reference for IBicepValue instances of collection items to include its index (for list) or its key (for dictionary) to avoid colliding with its enclosing collection’s property name. (#54802)

Provisioning - App Containers 1.2.0-beta.1 Changelog

Resource Management - Compute 1.14.0 Changelog

Resource Management - Edgeactions 1.0.0-beta.2 Changelog

Resource Management - Fileshares 1.0.0-beta.2 Changelog

Resource Management - Network 1.15.0 Changelog

Resource Management - Network Cloud 1.3.0 Changelog

Resource Management - PostgreSQL 1.4.0 Changelog

Resource Management - PostgreSQL 1.4.1 Changelog

Storage - Blobs 12.28.0-beta.1 Changelog

Features Added

  • Added support for service version 2026-04-06.
  • Added support for Content Validation via Structured Message.
  • Added support for Delete Blob Conditional Tier.
  • Added support for Server-side Encryption Rekeying.
  • Added cross-tenant support for Principal-Bound User Delegation SAS.
  • Added support for Dynamic User Delegation SAS.

Bugs Fixed

  • Added BlobErrorCode.IncrementalCopyOfEarlierSnapshotNotAllowed, deprecated BlobErrorCode.IncrementalCopyOfEarlierVersionSnapshotNotAllowed.
  • Added support for missing SkuName values.

Storage - Blobs Batch 12.25.0-beta.1 Changelog

Features Added

  • Added support for service version 2026-04-06.

Storage - Blobs ChangeFeed 12.0.0-preview.60 Changelog

Features Added

  • Added support for service version 2026-04-06.

Storage - Common 12.27.0-beta.1 Changelog

Features Added

  • This release contains bug fixes to improve quality.

Storage - Files Data Lake 12.26.0-beta.1 Changelog

Features Added

  • Added support for service version 2026-04-06.
  • Added support for Content Validation via Structured Message
  • Added cross-tenant support for Principal-Bound User Delegation SAS.
  • Added support for Dynamic User Delegation SAS.

Storage - Files Share 12.26.0-beta.1 Changelog

Features Added

  • Added support for service version 2026-04-06.
  • Added support for Content Validation via Structured Message
  • Added cross-tenant support for Principal-Bound User Delegation SAS.
  • Added support for Files Provisioned V2 Guardrails

Storage - Queues 12.26.0-beta.1 Changelog

Features Added

  • Added support for service version 2026-04-06.
  • Added cross-tenant support for Principal-Bound User Delegation SAS.

System.ClientModel 1.9.0 Changelog

Bugs Fixed

  • Fixed an issue with ClientRetryPolicy where delays were being calculated using the retry count instead of the attempt count, causing the initial retry to occur without delay and subsequent retries to be performed more quickly than intended.

Features Added

  • Added core support for Microsoft.Extensions.Configuration and Microsoft.Extensions.DependencyInjection.
  • Added JsonModel<T> abstract base class that provides a simplified way to implement IJsonModel<T> for JSON serialization and deserialization.

WebJobs Extensions - Web PubSub 1.10.0 Changelog

Features Added

  • Support identity-based connection.

unknown 1.0.0-beta.6 Changelog

Features Added

  • Added AgentRunContext with request, user info, and tool metadata.
  • Batched Foundry tool detail resolution with cached details.

unknown 1.0.0-beta.6 Changelog

Features Added

  • Added ChatClientBuilder.UseFoundryTools for Foundry tool discovery in chat pipelines.
  • Added FoundryToolsChatClient to merge resolved tools into chat options.

unknown 1.0.0-beta.6 Changelog

Other Changes

  • Package version alignment only. No functional changes.

unknown 1.0.0-beta.7 Changelog

Features Added

  • Added FoundryProjectEndpointResolver for centralized AZURE_AI_PROJECT_ENDPOINT resolution across hosting integrations.
  • Added ConversationItemsClient in Responses.Conversations for retrieving Foundry conversation items used by hydration adapters.

unknown 1.0.0-beta.7 Changelog

Other Changes

  • Package version alignment only. No functional changes.

unknown 1.0.0-beta.7 Changelog

Features Added

  • Added Foundry conversation history hydration via FoundryConversationThreadRepository and Core conversation items API integration.
  • Added RunAIAgentAsync and RunWorkflowAgentAsync overloads accepting TokenCredential and optional project endpoint for Foundry-backed thread hydration.
  • Enabled automatic Foundry-backed thread repository creation in existing run extension methods when AZURE_AI_PROJECT_ENDPOINT is configured.

unknown 1.0.0-beta.8 Changelog

Other Changes

  • Package version alignment only. No functional changes.

unknown 1.0.0-beta.8 Changelog

Bugs Fixed

  • Fixed Foundry conversation thread hydration to create agent-owned threads for AIAgent invocations, preventing “thread is not compatible with the agent” failures on /responses.
  • Make conversationId Optional

unknown 1.0.0-beta.8 Changelog

Bugs Fixed

  • Make conversationId Optional

Latest Releases

View all the latest versions of .NET packages here.

Installation Instructions

To install any of our packages, please search for them via Manage NuGet Packages... in Visual Studio (with Include prerelease checked) or copy these commands into your terminal:

$> dotnet add package Azure.AI.AgentServer.AgentFramework --version 1.0.0-beta.6
$> dotnet add package Azure.AI.AgentServer.AgentFramework --version 1.0.0-beta.7
$> dotnet add package Azure.AI.AgentServer.AgentFramework --version 1.0.0-beta.8
$> dotnet add package Azure.AI.AgentServer.Contracts --version 1.0.0-beta.6
$> dotnet add package Azure.AI.AgentServer.Contracts --version 1.0.0-beta.7
$> dotnet add package Azure.AI.AgentServer.Contracts --version 1.0.0-beta.8
$> dotnet add package Azure.AI.AgentServer.Core --version 1.0.0-beta.6
$> dotnet add package Azure.AI.AgentServer.Core --version 1.0.0-beta.7
$> dotnet add package Azure.AI.AgentServer.Core --version 1.0.0-beta.8
$> dotnet add package Azure.Communication.CallAutomation --version 1.5.1
$> dotnet add package Azure.Communication.CallAutomation --version 1.6.0-beta.2
$> dotnet add package Azure.Compute.Batch --version 1.0.0-beta.5
$> dotnet add package Azure.Core --version 1.51.0
$> dotnet add package Azure.Core --version 1.51.1
$> dotnet add package Azure.Data.AppConfiguration --version 1.8.0
$> dotnet add package Azure.Monitor.OpenTelemetry.Exporter --version 1.6.0
$> dotnet add package Azure.Provisioning --version 1.5.0-beta.1
$> dotnet add package Azure.Provisioning.AppContainers --version 1.2.0-beta.1
$> dotnet add package Azure.ResourceManager.Compute --version 1.14.0
$> dotnet add package Azure.ResourceManager.EdgeActions --version 1.0.0-beta.2
$> dotnet add package Azure.ResourceManager.FileShares --version 1.0.0-beta.2
$> dotnet add package Azure.ResourceManager.Network --version 1.15.0
$> dotnet add package Azure.ResourceManager.NetworkCloud --version 1.3.0
$> dotnet add package Azure.ResourceManager.PostgreSql --version 1.4.0
$> dotnet add package Azure.ResourceManager.PostgreSql --version 1.4.1
$> dotnet add package Azure.Storage.Blobs --version 12.28.0-beta.1
$> dotnet add package Azure.Storage.Blobs.Batch --version 12.25.0-beta.1
$> dotnet add package Azure.Storage.Blobs.ChangeFeed --version 12.0.0-preview.60
$> dotnet add package Azure.Storage.Common --version 12.27.0-beta.1
$> dotnet add package Azure.Storage.Files.DataLake --version 12.26.0-beta.1
$> dotnet add package Azure.Storage.Files.Shares --version 12.26.0-beta.1
$> dotnet add package Azure.Storage.Queues --version 12.26.0-beta.1
$> dotnet add package Microsoft.Azure.WebJobs.Extensions.WebPubSub --version 1.10.0
$> dotnet add package System.ClientModel --version 1.9.0

Feedback

If you have a bug or feature request for one of the libraries, please file an issue in our repo.