v0.5.1-beta.2

Added

• Add support for OTEL_TRACES_SAMPLER and OTEL_TRACES_SAMPLER_ARG.
• Add Initializing plugin extension point
  that is invoked before OpenTelemetry SDK configuration.

0.5.1-beta.1

This beta release is built on top of OpenTelemetry .NET:

• Core components: 1.4.0-beta.3
• System.Diagnostics.DiagnosticSource: 7.0.0

Added

• Add support for OTEL_BSP_SCHEDULE_DELAY, OTEL_BSP_EXPORT_TIMEOUT, OTEL_BSP_MAX_QUEUE_SIZE, OTEL_BSP_MAX_EXPORT_BATCH_SIZE.
• Add support for OTEL_METRIC_EXPORT_TIMEOUT.
• Add support for OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT, OTEL_ATTRIBUTE_COUNT_LIMIT, OTEL_SPAN_ATTRIBUTE_VALUE_LENGTH_LIMIT, OTEL_SPAN_ATTRIBUTE_COUNT_LIMIT, OTEL_SPAN_EVENT_COUNT_LIMIT, OTEL_SPAN_LINK_COUNT_LIMIT, OTEL_EVENT_ATTRIBUTE_COUNT_LIMIT, OTEL_LINK_ATTRIBUTE_COUNT_LIMIT for otlp exporter.

Changed

• Updated Core components: 1.4.0-beta.3
• Updated plugins method signature to overwrite OpenTelemetry .NET SDK exporters' and instrumentations' options. ConfigureOptions changed to ConfigureTracesOptions, ConfigureMetricsOptions or ConfigureLogsOptions.

v0.5.0

The is the first production-ready (non-beta) release. It is not stable yet.

Added

• Add support for .NET 7.
• Add support for OTEL_DOTNET_AUTO_LOGS_ENABLED.
• Add error log if bytecode instrumentation type is missing all instrumentation methods.
• Plugins can overwrite OpenTelemetry .NET SDK exporters' and instrumentations' options.

Changed

• Replace OTEL_DOTNET_AUTO_LOAD_TRACER_AT_STARTUP with OTEL_DOTNET_AUTO_TRACES_ENABLED and OTEL_DOTNET_AUTO_LOAD_METER_AT_STARTUP with OTEL_DOTNET_AUTO_METRICS_ENABLED.
• Disable OpenTracing by default. OpenTracing can be re-enabled via OTEL_DOTNET_AUTO_OPENTRACING_ENABLED.
• GraphQL exceptions are recorded as OTel events.
• DOTNET_STARTUP_HOOKS required value changed to $INSTALL_DIR/net/OpenTelemetry.AutoInstrumentation.StartupHook.dll.

Removed

• Remove support for .NET Core 3.1.
• Remove support for OTEL_DOTNET_AUTO_HTTP2UNENCRYPTEDSUPPORT_ENABLED.
• Remove support for OTEL_DOTNET_AUTO_ENABLED. Use CORECLR_ENABLE_PROFILING or COR_ENABLE_PROFILING instead.
• Remove support for OTEL_DOTNET_AUTO_INCLUDE_PROCESSES.

Fixed

• Fix the IIS registration in the PowerShell script module for Windows Server 2016.
• Fix the IIS unregistration in the PowerShell script module.
• Get rid of unnecessary service restarts during the IIS unregistration, in the PowerShell script module.
• OTEL_DOTNET_AUTO_TRACES_ENABLED is also respected by bytecode instrumentations.

v0.4.0-beta.1

Added

• Add WCF traces instrumentation (server-side for .NET Framework, client-side for both .NET Core and .NET Framework).
• Support ASP.NET Core OpenTelemetry Log exporter related environment variables:
  • OTEL_LOGS_EXPORTER,
  • OTEL_DOTNET_AUTO_LOGS_CONSOLE_EXPORTER_ENABLED,
  • OTEL_DOTNET_AUTO_LOGS_ENABLED_INSTRUMENTATIONS,
  • OTEL_DOTNET_AUTO_LOGS_DISABLED_INSTRUMENTATIONS,
  • OTEL_DOTNET_AUTO_LOGS_INCLUDE_FORMATTED_MESSAGE.
• Support OTEL_DOTNET_AUTO_GRAPHQL_SET_DOCUMENT (default value: false) environment variable which controls whether graphql.document attribute is set.
• Add ILogger logging instrumentation for .NET Core 3.1+.
• Add telemetry resource attributes.
• Add support for the b3 propagator.
• Add MassTransit traces instrumentation.
• Add OpenTelemetry.AutoInstrumentation Nuget package.
• Support for Process metrics collection using the OpenTelemetry.Instrumentation.Process package.
• Add Shell scripts for downloading and installing OpenTelemetry .NET Automatic Instrumentation and instrumenting .NET applications.
• Add PowerShell script module for downloading and installing OpenTelemetry .NET Automatic Instrumentation and instrumenting .NET applications.

Changed

• Replaced OTEL_DOTNET_AUTO_TRACES_PLUGINS and OTEL_DOTNET_AUTO_METRICS_PLUGINS with new environment variable OTEL_DOTNET_AUTO_PLUGINS.
• Adjusted tags for MongoDB integration. See pull request for more details.
• Extend MySql.Data traces instrumentation for versions 8.0.31+. Versions 8.0.31+ require bytecode instrumentation.

Removed

• Removed support for MongoDB integration for MongoDB.Driver.Core prior to 2.13.3.

Fixed

• Log folder structure is fully created on Linux.
• Update GraphQL instrumentation to follow the OpenTelemetry semantic conventions.
• Fixed the race between requesting ReJIT of methods targeted for bytecode instrumentation and their first execution. The race allowed, in rare occasions, for the first few executions of the method to not be instrumented. See issue #1242.
• Span kind for GraphQL instrumentation is set as span property instead of attribute.

v0.3.1-beta.1

This release is built on top of OpenTelemetry .NET:

• Core components: 1.3.1
• System.Diagnostics.DiagnosticSource: 6.0.0

Added

• Add support for Alpine.
• Add strong name signature to the OpenTelemetry.AutoInstrumentation assembly used
  on the .NET Framework.

Changed

• Extend StackExchange.Redis traces instrumentation for versions 2.6.66+.
• Updated Core components: 1.3.1

v0.3.0-beta.1

This release add various new instrumentations and more propagation options.

Added

• Add Grpc.Net.Client traces instrumentation.
• Add MySql.Data traces instrumentation.
• Add Npgsql traces instrumentation.
• Add StackExchange.Redis traces instrumentation.
• Add configuration option none to OTEL_DOTNET_AUTO_TRACES_ENABLED_INSTRUMENTATIONS
  and OTEL_DOTNET_AUTO_METRICS_ENABLED_INSTRUMENTATIONS.
• Add support for the b3multi propagator.
• Add support for the OTEL_PROPAGATORS environment variable.
  Supported configuration options are b3multi, baggage, tracecontext.
  Default is tracecontext,baggage.

Changed

• Renamed OTEL_DOTNET_AUTO_TRACES_ENABLED to OTEL_DOTNET_AUTO_ENABLED since it
  controls enabling or disabling the CLR profiler independent of the signal type.
• OTEL_DOTNET_AUTO_TRACES_ENABLED_INSTRUMENTATIONS default value is changed to
  include all of the available instrumentations.
• OTEL_DOTNET_AUTO_METRICS_ENABLED_INSTRUMENTATIONS default value is changed to
  include all of the available instrumentations.
• Changed Tracing sampler from always_on to parentbased_always_on.
  See the OpenTelemetry specification
  for more details.

Removed

• Remove OTEL_DOTNET_AUTO_DOMAIN_NEUTRAL_INSTRUMENTATION configuration
  as it is not needed.
• Remove OTEL_DOTNET_AUTO_{0}_ENABLED configuration,
  use OTEL_DOTNET_AUTO_[TRACES/METRICS]_[ENABLED/DISABLED]_INSTRUMENTATIONS
  instead.
• Remove OTEL_DOTNET_AUTO_METRICS_ENABLED configuration as it is not needed.

0.2.0-beta.1

The main feature of this release is the support for the metrics signal.

This release is built on top of OpenTelemetry .NET:

• Core components:
  1.3.0
• System.Diagnostics.DiagnosticSource: 6.0.0

You can find all OpenTelemetry references in
OpenTelemetry.AutoInstrumentation.csproj.

Added

• Adds MongoDB instrumentation support from .NET Core 3.1+.
• Support for OpenTelemetry metric exporter related environment variables:
  • OTEL_DOTNET_AUTO_METRICS_ENABLED,
  • OTEL_DOTNET_AUTO_LOAD_METER_AT_STARTUP,
  • OTEL_METRICS_EXPORTER,
  • OTEL_DOTNET_AUTO_METRICS_CONSOLE_EXPORTER_ENABLED,
  • OTEL_DOTNET_AUTO_METRICS_ENABLED_INSTRUMENTATIONS,
  • OTEL_DOTNET_AUTO_METRICS_DISABLED_INSTRUMENTATIONS,
  • OTEL_DOTNET_AUTO_METRICS_PLUGINS,
  • OTEL_DOTNET_AUTO_METRICS_ADDITIONAL_SOURCES.
• Support for .NET Runtime metrics collection using
  the OpenTelemetry.Instrumentation.Runtime package.
• Support for ASP.NET and HttpClient metrics instrumentations.
• Support for Prometheus Exporter HttpListener version.
• OTEL_DOTNET_AUTO_INTEGRATIONS_FILE can accept multiple filepaths
  delimted by the platform-specific path separator
  (; on Windows, : on Linux and macOS).
• Support for metric exporter interval using environment variable:
  OTEL_METRIC_EXPORT_INTERVAL.

Changed

• Rename generic environment variables to include trace.
  • OTEL_DOTNET_AUTO_ENABLED → OTEL_DOTNET_AUTO_TRACES_ENABLED,
  • OTEL_DOTNET_AUTO_LOAD_AT_STARTUP → OTEL_DOTNET_AUTO_LOAD_TRACER_AT_STARTUP,
  • OTEL_DOTNET_AUTO_CONSOLE_EXPORTER_ENABLED → OTEL_DOTNET_AUTO_TRACES_CONSOLE_EXPORTER_ENABLED,
  • OTEL_DOTNET_AUTO_ENABLED_INSTRUMENTATIONS → OTEL_DOTNET_AUTO_TRACES_ENABLED_INSTRUMENTATIONS,
  • OTEL_DOTNET_AUTO_DISABLED_INSTRUMENTATIONS → OTEL_DOTNET_AUTO_TRACES_DISABLED_INSTRUMENTATIONS,
  • OTEL_DOTNET_AUTO_INSTRUMENTATION_PLUGINS → OTEL_DOTNET_AUTO_TRACES_PLUGINS,
  • OTEL_DOTNET_AUTO_ADDITIONAL_SOURCES → OTEL_DOTNET_AUTO_TRACES_ADDITIONAL_SOURCES.

Removed

• Support for .NET 5.0

Fixed

• Use , as seperator, as documented, instead of ;, for:
  • OTEL_DOTNET_AUTO_INCLUDE_PROCESSES,
  • OTEL_DOTNET_AUTO_EXCLUDE_PROCESSES,
  • OTEL_DOTNET_AUTO_TRACES_DISABLED_INSTRUMENTATIONS.
• Remove invalid instrumentation for MongoDB.Driver.Core <2.3.0.

0.1.0-beta.1

The is an initial, official beta release,
built on top of OpenTelemetry .NET:

• Core components:
  1.2.0
• Non-core components: 1.0.0-rc9.2
• System.Diagnostics.DiagnosticSource: 6.0.0

Added

• Support for .NET Framework 4.6.2 and higher.
• Support for .NET Core 3.1.
• Support for .NET 5.0 and 6.0.
• ASP.NET and ASP.NET Core source instrumentations.
• GraphQL bytecode instrumentation.
• Microsoft.Data.SqlClient
  and System.Data.SqlClient
  source instrumentation.
• OTLP, Jaeger, Zipkin and Console trace exporters.
• Global management using environment variables:
  OTEL_DOTNET_AUTO_HOME, OTEL_DOTNET_AUTO_ENABLED,
  OTEL_DOTNET_AUTO_INCLUDE_PROCESSES, OTEL_DOTNET_AUTO_EXCLUDE_PROCESSES,
  OTEL_DOTNET_AUTO_AZURE_APP_SERVICES.
• Support for OpenTelemetry resource environment variables:
  OTEL_RESOURCE_ATTRIBUTES, OTEL_SERVICE_NAME.
• Instrumentation management using environment variables:
  OTEL_DOTNET_AUTO_INTEGRATIONS_FILE, OTEL_DOTNET_AUTO_ENABLED_INSTRUMENTATIONS,
  OTEL_DOTNET_AUTO_DISABLED_INSTRUMENTATIONS,
  OTEL_DOTNET_AUTO_{0}_ENABLED,
  OTEL_DOTNET_AUTO_DOMAIN_NEUTRAL_INSTRUMENTATION,
  OTEL_DOTNET_AUTO_CLR_DISABLE_OPTIMIZATIONS,
  OTEL_DOTNET_AUTO_CLR_ENABLE_INLINING,
  OTEL_DOTNET_AUTO_CLR_ENABLE_NGEN.
• Support for OpenTelemetry exporter related environment variables:
  OTEL_TRACES_EXPORTER,
  OTEL_EXPORTER_OTLP_PROTOCOL,
• Customization and plugin capabilities which can be configured
  using the following environment variables:
  OTEL_DOTNET_AUTO_LOAD_AT_STARTUP,
  OTEL_DOTNET_AUTO_ADDITIONAL_SOURCES,
  OTEL_DOTNET_AUTO_LEGACY_SOURCES,
  OTEL_DOTNET_AUTO_INSTRUMENTATION_PLUGINS.
• OTEL_DOTNET_AUTO_HTTP2UNENCRYPTEDSUPPORT_ENABLED environment variable
  which enables System.Net.Http.SocketsHttpHandler.Http2UnencryptedSupport.
  See the official Microsoft documentation
  for more details.

v0.0.1

This version is not supported. More: #226

Initial pre-alpha release.