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NuGet · #466 most downloaded on NuGet

Microsoft.ApplicationInsights.WorkerService

3.1.2139M downloads/moMicrosoft/ApplicationInsights-dotnet ↗New releases in your daily digest, changelog included.

Application Insights for .NET Core Worker Service (messaging, background tasks, and any non-HTTP workloads) applications. See https://docs.microsoft.com/azure/azure-monitor/app/worker-service for more information. Privacy statement: https://go.microsoft.com/fwlink/?LinkId=512156

Last release 4 months ago
28 May 2026
Release timing varies
gaps range from 3 weeks to 1.4 years
Nearly every release is documented
notes for 21 of 22 stable releases
29 versions withdrawn
withdrawn after publishing
127 years old
52 releases · first in 1900

Release timeline

52 releases since 1900

Releases

3.1.228 May 20262 sources agree
Fix HttpException: Request is not available in this context in the WEB package when calling TrackDependency from Application_Start in classic ASP.NET.
Version 3.1.2

Fix HttpException: Request is not available in this context in the WEB package when calling TrackDependency from Application_Start in classic ASP.NET. The WEB activity processors now safely handle the case where HttpContext.Request is not yet available.

Fix #3163: TelemetryConfiguration.CreateDefault() on classic ASP.NET now returns a configuration already populated from ApplicationInsights.config (connection string, sampling, storage, live metrics, request/dependency tracking, etc.). A new PreApplicationStartMethod (WebApplicationInsightsInitializer) materializes and populates the singleton before Application_Start runs, so customer code calling TelemetryConfiguration.CreateDefault() from Global.asax.cs no longer gets an empty configuration. The ApplicationInsightsHttpModule no longer carries the config-reading bookkeeping. TelemetryConfiguration.PrependOpenTelemetryBuilderConfiguration no longer throws if the configuration was already built — it silently skips, so a second TelemetryClient constructed against an already-built configuration no longer throws InvalidOperationException.
Open source →

From the same repository

Microsoft/ApplicationInsights-dotnet

Microsoft.ApplicationInsightsNuGetApplication Insights Base API. This package provides core functionality for transmission of all Application Insights Telemetry Types and is a dependent package for all other Application Insights packages. Please install the platform specific package for the best experience. Privacy statement: https://go.microsoft.com/fwlink/?LinkId=512156
Microsoft.Extensions.Logging.ApplicationInsightsNuGetApplication Insights ILogger allows forwarding events from ILogger to Application Insights. Application Insights will collect your logs from multiple sources and provide rich powerful search capabilities. Privacy statement: https://go.microsoft.com/fwlink/?LinkId=512156
Microsoft.ApplicationInsights.EventCounterCollectorNuGetApplication Insights Event Counter Collector allows you to send data sent from EventCounters to Application Insights. Privacy statement: https://go.microsoft.com/fwlink/?LinkId=512156
Microsoft.ApplicationInsights.TraceListener

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19002026

One column per quarter.

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3.1.1

8 May 2026

2 sources agree

Update OpenTelemetry and Azure Monitor dependencies to address known security advisories (e.g. GHSA-g94r-2vxg-569j in OpenTelemetry.Api 1.15.1): #3174

Version 3.1.1

Update OpenTelemetry and Azure Monitor dependencies to address known security advisories (e.g. GHSA-g94r-2vxg-569j in OpenTelemetry.Api 1.15.1): #3174
- OpenTelemetry 1.15.3
- OpenTelemetry.Exporter.Console 1.15.3
- OpenTelemetry.Exporter.InMemory 1.15.3
- OpenTelemetry.Extensions.Hosting 1.15.3
- OpenTelemetry.Instrumentation.AspNetCore 1.15.2
- OpenTelemetry.Instrumentation.AspNet 1.15.2
- OpenTelemetry.Instrumentation.Http 1.15.1
- OpenTelemetry.Instrumentation.SqlClient 1.15.2
- Azure.Monitor.OpenTelemetry.Exporter 1.8.0

Open source →

▸▾3.1.02 Apr 20262 sources agree

Make TelemetryContext properties public and propagate them via TelemetryClient .

Version 3.1.0

Make TelemetryContext properties public and propagate them via TelemetryClient.
Add fallback to APPLICATIONINSIGHTS_CONNECTION_STRING environment variable for Base, Web, and NLog packages when connection string is not set via code.
Update Azure.Monitor.OpenTelemetry.Exporter to 1.7.0. This includes updated mappings for telemetry context.
Fix OTEL_SDK_DISABLED not being honored when TelemetryConfiguration.DisableTelemetry is set in DI scenarios., #3157
Fix TrackAvailability ignoring user-specified Timestamp on AvailabilityTelemetry. The timestamp is now emitted as microsoft.availability.testTimestamp so downstream exporters can use the correct event time.
Added netstandard2.0 target framework to Microsoft.ApplicationInsights package to support customers with shared libraries targeting netstandard2.0.
Fix TelemetryClient.Context.Cloud.RoleName set after construction now applies to all telemetry.
Fix bug where Debug/Trace level logs from TrackTrace API were not emitted to Application Insights
Fix Track API calls to not mutate the passed in dictionary if it is readonly
Fix NullReferenceException in TelemetryClient.Flush() and FlushAsync() when called from DI scenarios
Fix ApplicationVersion ignored: ApplicationInsightsServiceOptions.ApplicationVersion is now applied as service.version on the OpenTelemetry Resource for both AspNetCore and WorkerService packages
Fix HttpRequestExtensions.UnvalidatedGetHeader always returning empty string instead of the actual header value. Restored max-length enforcement to guard against oversized header values.

Open source →

▸▾3.0.04 Feb 20262 sources agree

Replaced netstandard2.0 with net8.0 target framework in Microsoft.ApplicationInsights.NLogTarget package.

Replaced netstandard2.0 with net8.0 target framework in Microsoft.ApplicationInsights.NLogTarget package.

Open source →

▸▾3.0.0-rc130 Jan 2026pre-release2 sources agree

Removed netstandard2.0 target framework from Microsoft.ApplicationInsights , Microsoft.ApplicationInsights.AspNetCore , and Microsoft.ApplicationInsig

Removed netstandard2.0 target framework from Microsoft.ApplicationInsights, Microsoft.ApplicationInsights.AspNetCore, and Microsoft.ApplicationInsights.WorkerService packages.
The JavaScript in Microsoft.ApplicationInsights.AspNetCore has been updated to version 10.
Centralized package version management
Update OpenTelemetry dependencies, #3092
- OpenTelemetry 1.15.0
- OpenTelemetry.Instrumentation.AspNetCore 1.15.0
- OpenTelemetry.Instrumentation.AspNet 1.15.1
- OpenTelemetry.Instrumentation.Http 1.15.0
- OpenTelemetry.Instrumentation.SqlClient 1.15.0
Vendored OpenTelemetry.Resources.Azure resource detectors to NETCORE shared folder, replaced package with vendored implementation, #3093
Added support to disable telemetry via TelemetryConfiguration.DisableTelemetry
Removed EnabledAdaptiveSampling and replaced with TracesPerSecond and SamplingRatio
Added EnableTraceBasedLogsSampler property to ApplicationInsightsServiceOptions for ASP.NET Core and WorkerService packages
Added support for StorageDirectory and DisableOfflineStorage from TelemetryConfiguration in DI scenarios
Update Azure.Monitor.OpenTelemetry.Exporter dependency to 1.6.0

Open source →

▸▾2.23.019 Feb 20252 sources agree

no changes since beta.

no changes since beta.

Open source →

▸▾2.23.0-beta11 Jan 1900pre-releasewithdrawn2 sources agree

Populate required field Message with "n/a" if it is empty

Populate required field Message with "n/a" if it is empty
Fix ITelemetryModule singleton registration to support presence of keyed services

Open source →

▸▾2.22.05 Dec 20232 sources agree

no changes since beta.

no changes since beta.

Open source →

▸▾2.22.0-beta41 Jan 1900pre-releasewithdrawn

Added support to read diagnostics config from the path defined in environment variable.

Added support to read diagnostics config from the path defined in environment variable.

Open source →

▸▾2.22.0-beta31 Jan 1900pre-releasewithdrawn

Do not report CosmosDB transport-level calls

Do not report CosmosDB transport-level calls
Fixed an adaptive sampling issue that caused incorrect item count when an Activity Recorded flags were modified externally, when enabled side-by-side with OpenTelemetry or other solutions.

Open source →

▸▾2.22.0-beta21 Jan 1900pre-releasewithdrawnSecurity

Upgrade System.Diagnostics.PerformanceCounter to version 6.0.0 to address CVE-2021-24112

Upgrade System.Diagnostics.PerformanceCounter to version 6.0.0 to address CVE-2021-24112
Report internal dependencies from Cosmos SDK as InProc and align with Cosmos SDK EventSource changes

Open source →

▸▾2.22.0-beta11 Jan 1900pre-releasewithdrawn

Update endpoint redirect header name for QuickPulse module to v2

Update endpoint redirect header name for QuickPulse module to v2
AzureSdkDiagnosticListener modified to use sdkversion prefix "rdddsaz" instead of "dotnet".
ILogger logs with LogLevel.None severity are now ignored by ApplicationInsightsLogger. Fixes (#2666)
Fix ExceptionTelemetry clears all Context when updating Exception property
Support dependency tracking and diagnostics events for Microsoft.Azure.Cosmos v3

Open source →

▸▾2.21.020 Jul 2022

- no changes since beta.

no changes since beta.

Open source →

▸▾2.21.0-beta31 Jan 1900pre-releasewithdrawnSecurity

Address vulnerability in Newtonsoft.Json (GHSA-5crp-9r3c-p9vr). Mitigation is to upgrade dependencies in Microsoft.ApplicationInsights.AspNetCore

Remove two unnecessary .NET Standard 1.x dependencies.
Address vulnerability in Newtonsoft.Json (GHSA-5crp-9r3c-p9vr). Mitigation is to upgrade dependencies in Microsoft.ApplicationInsights.AspNetCore (#2615)
- Upgrade Microsoft.Extensions.Configuration.Json from v2.1.0 to v3.1.0.
- Upgrade System.Text.Encodings.Web from 4.5.1 to 4.7.2.

Open source →

▸▾2.21.0-beta21 Jan 1900pre-releasewithdrawn

LOGGING: Make TelemetryConfiguration configurable in ApplicationInsightsLoggingBuilderExtensions

LOGGING: Make TelemetryConfiguration configurable in ApplicationInsightsLoggingBuilderExtensions
Added support for distributed tracing with Azure.Messaging.ServiceBus
Move internal type from Shared to Microsoft namespace
Extension methods to retrive specific operation details.
Mark Instrumentation Key based APIs as Obsolete.
- See also: https://docs.microsoft.com/azure/azure-monitor/app/migrate-from-instrumentation-keys-to-connection-strings
Fix: Livelock in MetricValuesBuffer. Mitigation for TelemetryClient.Flush deadlocks (#1186)

Open source →

▸▾2.21.0-beta11 Jan 1900pre-releasewithdrawn

Support IPv6 in request headers

Support IPv6 in request headers
Validate exception stack trace line numbers to comply with endpoint restrictions.
Removed redundant memory allocations and processing in PartialSuccessTransmissionPolicy for ingestion sampling cases
Validate exception message length to comply with endpoint restrictions.
Update JavaScript snippet to sv5 which includes the cdn endpoint.
Make operation detail name constants public.

Open source →

▸▾2.20.016 Dec 2021

Nothing published for this version

▸▾2.20.0-beta11 Jan 1900pre-releasewithdrawn

Allow Control of Documents sampling for QuickPulse telemetry

Allow Control of Documents sampling for QuickPulse telemetry

Open source →

▸▾2.19.09 Nov 2021

- Support for .Net6

Support for .Net6

Open source →

▸▾2.19.0-beta11 Jan 1900pre-releasewithdrawn

The `{OriginalFormat}` field in ILogger Scope will be emitted as `OriginalFormat` with the braces removed

The {OriginalFormat} field in ILogger Scope will be emitted as OriginalFormat with the braces removed
Enable SDK to create package for auto-instrumentation
Suppress long running SignalR connections
Support for redirect response from Ingestion service
NetCore2.1 has reached end of life and all references have been removed

Open source →

▸▾2.18.028 Jul 2021

Change Self-Diagnostics to include datetimestamp in filename

Change Self-Diagnostics to include datetimestamp in filename
AAD: Add logging to AuthenticationTransmissionPolicy
QuickPulse: Bump the number of custom dimensions included into full documents for QuickPulse from 3 to 10, make the selection consistent

Open source →

▸▾2.18.0-beta31 Jan 1900pre-releasewithdrawnBreaking

AAD Breaking change: CredentialEnvelope.GetToken() now returns type AuthToken instead of string. This is to expose the Expiration value with the token…

Enable the self diagnostics and fix a NullReferenceException bug
AAD Breaking change: CredentialEnvelope.GetToken() now returns type AuthToken instead of string. This is to expose the Expiration value with the token.

Open source →

▸▾2.18.0-beta21 Jan 1900pre-releasewithdrawn

Reduce technical debt: Use pattern matching

Reduce technical debt: Use pattern matching
Improve Self Diagnostics and support setting configuration in file
Fix AzureSdkDiagnosticListener from crashing user app.
Add support for Azure Active Directory

Open source →

▸▾2.18.0-beta11 Jan 1900pre-releasewithdrawn

Fix PropertyFetcher error when used with multiple types

Fix PropertyFetcher error when used with multiple types
New Task Based Flush API - FlushAsync
End support for net45 and net46 in AspNetCore

Open source →

▸▾2.17.018 Feb 2021

Fix: telemetry parent id when using W3C activity format in TelemetryDiagnosticSourceListener

Fix: telemetry parent id when using W3C activity format in TelemetryDiagnosticSourceListener
Add ingestion response duration for transmission to data delivery status - TransmissionStatusEventArgs
Update default Profiler and Snapshot Debugger endpoints

Open source →

▸▾2.17.0-beta11 Jan 1900pre-releasewithdrawnSecurity

Upgrade Log4Net to version 2.0.10 to address CVE-2018-1285

Fix: Missing Dependencies when using Microsoft.Data.SqlClient v2.0.0
Add RoleName as a header with Ping Requests to QuickPulse.
QuickPulseTelemetryModule takes hints from the service regarding the endpoint to ping and how often to ping it
Upgrade Log4Net to version 2.0.10 to address CVE-2018-1285

Open source →

▸▾2.16.011 Nov 2020

QuickPulseTelemetryModule and MonitoringDataPoint have a new Cloud Role Name field for sending with ping and post requests to QuickPulse Service.

QuickPulseTelemetryModule and MonitoringDataPoint have a new Cloud Role Name field for sending with ping and post requests to QuickPulse Service.
Upgrade to System.Diagnostics.DiagnosticSource v5.0.0

Open source →

▸▾2.16.0-beta11 Jan 1900pre-releasewithdrawn

ILogger LogError and LogWarning variants write exception `ExceptionStackTrace` when `TrackExceptionsAsExceptionTelemetry` flag is set to `false`

ILogger LogError and LogWarning variants write exception ExceptionStackTrace when TrackExceptionsAsExceptionTelemetry flag is set to false
Upgrade to System.Diagnostics.DiagnosticSource v5.0.0-rc.2.20475.5
The {OriginalFormat} field in ILogger will be emitted as OriginalFormat with the braces removed
ApplicationInsightsLoggerProvider populates structured logging key/values irrespective of whether Scopes are enabled or not.

Open source →

▸▾2.15.015 Sept 2020

EventCounterCollector module does not add AggregationInterval as a dimension to the metric.

EventCounterCollector module does not add AggregationInterval as a dimension to the metric.

Open source →

▸▾2.15.0-beta31 Jan 1900pre-releasewithdrawn

Support Request.PathBase for AspNetCore telemetry

Support Request.PathBase for AspNetCore telemetry
End support for .NET Framework 4.5 / 4.5.1, Add support for .NET Framework 4.5.2
Create single request telemetry when URL-rewrite rewrites a request
Remove legacy TelemetryConfiguration.Active from AspNetCore SDK
Refactor AspNetCore and WorkerService use of Heartbeat (DiagnosticTelemetryModule)
Fix broken correlation and missing in-proc dependency Azure Blob SDK v12
Fix Heartbeat interval not applied until after first heartbeat
Fix: ApplicationInsightsLoggerProvider does not catch exceptions
Update AppInsights JS snippet used in the code to latest version
ServerTelemetryChannel does not fall back to any default directory if user explicitly configures StorageFolder, and have trouble read/write to it
Fixed a bug which caused ApplicationInsights.config file being read for populating TelemetryConfiguration in .NET Core projects
Remove System.RunTime EventCounters by default
Ingestion service data delivery status
Update version of Microsoft.AspNetCore.Hosting to 2.1.0

Open source →

▸▾2.15.0-beta21 Jan 1900pre-releasewithdrawn

Read all properties of ApplicationInsightsServiceOptions from IConfiguration

Read all properties of ApplicationInsightsServiceOptions from IConfiguration
End support for NetStandard 1.x, Add support for NetStandard 2.0
Add support for SourceLink.Github to all SDKs.
ServerTelemetryChannel by default uses local disk storage in non Windows, to store telemetry during transient errors
Make TelemetryConfiguration property of TelemetryClient public accessible to be able to read the configuration

Open source →

▸▾2.15.0-beta11 Jan 1900pre-releasewithdrawn

WorkerService package is modified to depend on 2.1.1 on Microsoft.Extensions.DependencyInjection so that it can be used in .NET Core 2.1 projects with

WorkerService package is modified to depend on 2.1.1 on Microsoft.Extensions.DependencyInjection so that it can be used in .NET Core 2.1 projects without nuget errors.
Adding a flag to EventCounterCollector to enable/disable storing the EventSource name in the MetricNamespace and simplify the metric name
New: EventCounter to track Ingestion Endpoint Response Time

Open source →

▸▾2.14.024 Apr 2020

- no changes since beta.

no changes since beta.

Open source →

▸▾2.14.0-beta51 Jan 1900pre-releasewithdrawn

Stop collecting EventCounters from Microsoft.AspNetCore.Hosting

Stop collecting EventCounters from Microsoft.AspNetCore.Hosting
Enable ILogger provider for apps targeting .NET Framework

Open source →

▸▾2.14.0-beta31 Jan 1900pre-releasewithdrawn

New: JavaScript Property to support Content Security Policy

New: JavaScript Property to support Content Security Policy
Fix: All perf counters stop being collected when any of faulty counters are specified to collect on Azure WebApps
Fix: Some perf counters aren't collected when app is hosted on Azure WebApp
Fix: Update dependencies to fix incompatibility with NetCore 3.0 and 3.1
- removing dependency on System.Data.SqlClient
- System.Diagnostics.PerformanceCounter v4.5.0 -> v4.7.0
- System.IO.FileSystem.AccessControl v4.5.0 -> 4.7.0

Open source →

▸▾2.14.0-beta21 Jan 1900pre-releasewithdrawn

Fix: AspNetCore AddApplicationInsightsSettings() and MissingMethodException

Fix: AspNetCore AddApplicationInsightsSettings() and MissingMethodException

Open source →

▸▾2.14.0-beta11 Jan 1900pre-releasewithdrawn

Support new conventions for EventHubs from Azure.Messaging.EventHubs and processor.

Support new conventions for EventHubs from Azure.Messaging.EventHubs and processor.
Adding a flag to DependencyTrackingTelemetryModule to enable/disable collection of SQL Command text. Collecting SQL Command Text will now be opt-in, so this value will default to false. This is a change from the current behavior on .NET Core. To see how to collect SQL Command Text see here for details: https://docs.microsoft.com/azure/azure-monitor/app/asp-net-dependencies#advanced-sql-tracking-to-get-full-sql-query
change references to log4net to version 2.0.8
Fix: PerformanceCounter implementation is taking large memory allocation

Open source →

▸▾2.13.122 Feb 2020

Fix: AspNetCore AddApplicationInsightsSettings() and MissingMethodException

Fix: AspNetCore AddApplicationInsightsSettings() and MissingMethodException

Open source →

▸▾2.13.019 Feb 2020

- no changes since beta.

no changes since beta.

Open source →

▸▾2.13.0-beta21 Jan 1900pre-releasewithdrawn

Move FileDiagnosticTelemetryModule to Microsoft.ApplicationInsights assembly.

Move FileDiagnosticTelemetryModule to Microsoft.ApplicationInsights assembly.
Do not track exceptions from HttpClient on .NET Core
Copy tags if we create new Activity in ASP.NET Core listener

Open source →

▸▾2.13.0-beta11 Jan 1900pre-releasewithdrawn

All product sdks are now building the same symbols (DebugType = FULL) and we're including symbols in the nuget package.

All product sdks are now building the same symbols (DebugType = FULL) and we're including symbols in the nuget package.
Upgraded FxCop and fixed several issues related to null checks and disposing objects.
Fix Environment read permission Exception
Exceptions are not correlated to requests when customErrors=Off and Request-Id is passed
Switch to compact Id format in W3C mode
Sanitizing Message in Exception
Fix CreateRequestTelemetryPrivate throwing System.ArgumentOutOfRangeException
NLog supports TargetFramework NetStandard2.0 and reduces dependencies

Open source →

▸▾2.12.222 Feb 2020

Fix: AspNetCore AddApplicationInsightsSettings() and MissingMethodException

Fix: AspNetCore AddApplicationInsightsSettings() and MissingMethodException

Open source →

▸▾2.12.128 Jan 2020

Fix Endpoint configuration bug affecting ServerTelemetryChannel and QuickPulseTelemetryModule

Fix Endpoint configuration bug affecting ServerTelemetryChannel and QuickPulseTelemetryModule

Open source →

▸▾2.12.09 Dec 2019

Fix IndexOutOfRangeException in W3CUtilities.TryGetTraceId

Fix IndexOutOfRangeException in W3CUtilities.TryGetTraceId
Fix UpdateRequestTelemetryFromRequest throwing UriFormatException
Add ETW log for missing Instrumentation Key
Remove HttpContext lock from AzureAppServiceRoleNameFromHostNameHeaderInitializer

Open source →

▸▾2.12.0-beta41 Jan 1900pre-releasewithdrawn

Add support for collecting convention-based Azure SDK activities.

Add support for collecting convention-based Azure SDK activities.
Log4Net includes Message for ExceptionTelemetry
NLog includes Message for ExceptionTelemetry
Fix RouteData not set in ASP.Net Core 3.0
Fix dependency tracking for Microsoft.Azure.EventHubs SDK 4.1.

Open source →

▸▾2.12.0-beta31 Jan 1900pre-releasewithdrawn

Standard Metric extractor for Dependency) add Dependency.ResultCode dimension.

Standard Metric extractor for Dependency) add Dependency.ResultCode dimension.

Open source →

▸▾2.12.0-beta21 Jan 1900pre-releasewithdrawn

Enable Metric DimensionCapping API for Internal use with standard metric aggregation.

Enable Metric DimensionCapping API for Internal use with standard metric aggregation.
ILogger - Flush TelemetryChannel when the ILoggerProvider is Disposed.
Standard Metric extractor (Request,Dependency) populates all standard dimensions.

Open source →

▸▾2.12.0-beta11 Jan 1900pre-releasewithdrawn

BASE: [New: TelemetryConfiguration now supports Connection Strings]https://github.com/microsoft/ApplicationInsights-dotnet/issues/1221)

BASE: [New: TelemetryConfiguration now supports Connection Strings]https://github.com/microsoft/ApplicationInsights-dotnet/issues/1221)
WEB: Enhancement to how QuickPulseTelemetryModule shares its ServiceEndpoint with QuickPulseTelemetryProcessor.
WEB: QuickPulse will support SDK Connection String
WEB: Add support for storing EventCounter Metadata as properties of MetricTelemetry
WEB: New RoleName initializer for Azure Web App to accurately populate RoleName.
NETCORE: Skipping version numbers to keep in sync with Base SDK.
NETCORE: Fix Null/Empty Ikey from ApplicationInsightsServiceOptions overrding one from appsettings.json
NETCORE: Provide ApplicationInsightsServiceOptions for easy disabling of any default TelemetryModules
NETCORE: Added support for SDK Connection String
NETCORE: New RoleName initializer for Azure Web App to accurately populate RoleName.
NETCORE: Update to Base/Web/Logging SDK to 2.12.0-beta1

Before 2.12.0, our SDKs had separate repositories.

Open source →

▸▾2.8.216 Oct 2019

NETCORE: Updated Web SDK to 2.11.2

NETCORE: Updated Web SDK to 2.11.2

Open source →

▸▾2.8.18 Oct 2019

Patch release addressing perf regression.

Patch release addressing perf regression.

Open source →

▸▾2.8.023 Sept 2019

BASE: New API to store/retrieve any raw objects on TelemetryContext to enable AutoCollectors to pass additional information for use by TelemetryInitia

BASE: New API to store/retrieve any raw objects on TelemetryContext to enable AutoCollectors to pass additional information for use by TelemetryInitializers.
BASE: Perf Improvements https://github.com/Microsoft/ApplicationInsights-dotnet/issues/927 https://github.com/Microsoft/ApplicationInsights-dotnet/issues/930 https://github.com/Microsoft/ApplicationInsights-dotnet/issues/934
BASE: Fix: Response code shouldn't be overwritten to 200 if not set

Open source →

▸▾2.8.0-beta31 Jan 1900pre-releasewithdrawn

NETCORE: Make W3C Correlation default and leverage native W3C support from Activity.

NETCORE: Make W3C Correlation default and leverage native W3C support from Activity.
NETCORE: Make W3C Correlation default and leverage native W3C support from Activity for Asp.Net Core 3.0.
NETCORE: Fix: Azure Functions performance degradation when W3C enabled.
NETCORE: Fix: AppId is never set is Response Headers.
NETCORE: Support correlation-context in absence of request-id or traceparent.
NETCORE: Non Product - Asp.Net Core 3.0 Functional Tests Added. This leverages the built-in integration test capability of ASP.NET Core via Microsoft.AspNetCore.MVC.Testing
NETCORE: Fix: System.NullReferenceException in WebSessionTelemetryInitializer.
NETCORE: Updated Base SDK/Web SDK/Logging Adaptor SDK version dependency to 2.11.0-beta2
NETCORE: Updated System.Diagnostics.DiagnosticSource to 4.6.0-preview8.
NETCORE: Add new package for .NET Core WorkerServices (Adds GenericHost support)

Open source →

Your coding agent can read these notes before it upgrades. Set up the MCP server →

NuGet

Application Insights Trace Listener is a custom TraceListener allowing you to send trace log messages to Application Insights. Application Insights will collect your logs from multiple sources and provide rich powerful search capabilities. Privacy statement: https://go.microsoft.com/fwlink/?LinkId=512156

Microsoft.ApplicationInsights.NLogTargetNuGetApplication Insights NLog Target is a custom target allowing you to send NLog log messages to Application Insights. Application Insights will collect your logs from multiple sources and provide rich powerful search capabilities. Privacy statement: https://go.microsoft.com/fwlink/?LinkId=512156

Microsoft.ApplicationInsights.Log4NetAppenderNuGetApplication Insights Log4Net Appender is a customer appender allowing you to send Log4Net log messages to Application Insights. Application Insights will collect your logs from multiple sources and provide rich powerful search capabilities. Privacy statement: https://go.microsoft.com/fwlink/?LinkId=512156