2.21.0

Summary

Warning We identified a bug in the .NET Runtime in .NET 5+ that can cause crashes in rare cases. You can mitigate the issue by setting DD_INTERNAL_WORKAROUND_77973_ENABLED=1. However, this disables tiered JIT in affected runtimes (.NET 5, .NET 6, .NET 7), which may have a significant impact on application throughput.

Note that setting this flag will have no effect or impact when set for unaffected runtimes. The root issue in the .NET runtime has been resolved and will be released in versions 6.0.13 and 7.0.2 of the runtime. No fix is available for .NET 5. Other .NET versions are not affected.

⛔ The Linux .NET profiler in this version can deadlock managed threads due to stackwalking while allocating memory. This is fixed in #3661. In the meantime, we recommend to either use the 2.20, either disable the profiler by setting the environment variable DD_PROFILING_ENABLED=0. The fix will be shipped in 2.22

⚠️ If you're updating the MSI from version 2.13.0 or earlier and you are missing traces, you should restart the machine after updating. This issue has been fixed in 2.23.0.

• [Tracer] Update ActivityListener to handle OpenTelemetry API methods
• [Profiler] Improve Linux stackwalk
• [CI Visibility] Improvements to Code Coverage

Changes

Tracer

• [tracer] W3C Trace Context part 2: dd values in tracestate header (#3491)
• [CLI] Check if DD_TRACE_ENABLED is set And Log if set to false (#3500)
• Keep single sampled spans when stats enabled (#3536)
• Small refactor for managed logging (#3541)
• Add support for CallTarget async continuations (OnAsyncMethodEnd returning a Task) (#3555)
• Updated Newtonsoft.Json to 13.0.2 (#3559)
• Adds a workaround for the dotnet runtime issue 77973 (#3506, #3579)
• Add environment variable DD_TRACE_OTEL_ENABLED (#3531)
• [Tracer] Update ActivityListener to handle OpenTelemetry API methods (#3556)

CI Visibility

• [CI Visibility] - Code Coverage rewrite and improvements (#3494)
• [CI Visibility] - Add validation for git metadata env vars (#3560)
• [CIVisibility] - Add CIVisibility known errors to the CheckBuildLogs task (#3564)

ASM

• asm/waf rules enabling (#3321)
• [ASM] Security refactoring : removing instrumentation gateway and simplifying (#3442)
• [ASM] Taint request parameters (#3513)
• [ASM] Taint request headers (#3563)

Continuous Profiler

• [Profiler] Improve Linux stackwalk (#3485)
• [Profiler] Bump libdatadog version from 0.9.0 to 1.0.0 (#3538)
• [Profiler] Move GC labels from enum to text (#3545)
• [Profiler] Bump libdatadog version from 1.0.0 to 1.0.1 (#3557)
• [Profiler] Remove per type allocation (#3561)
• [Profiler] Remove 100+ ms threshold for lock contention (#3565)
• [Profiler] Remove async call for parallel buggybits (#3569)

Debugger

• Move debugger tests to separate project (#3526)
• Fix bug which caused DD_WRITE_INSTRUMENTATION_TO_DISK to stop working (#3566)
• [Debugger] Temporary disable debugger tests for x86, .net 3.1 and .net6.0 (#3575)

Fixes

• Refactor launchSettings.json to load the CLR Profiler from the monitoring-home directory (#3532)

Build / Test

• Add "analyze-instrumentation" command to dd-trace diagnostic tool (#3408)
• Test against net462 to fix code coverage (#3520)
• Log error code when fetching kafka topic (#3527)
• Set QUIC_LTTng=0 in docker images (#3529)
• Run arm64 and Lambda integration tests on .NET 7 (#3530)
• Add some output to the runtime metrics test (#3535)
• [Build] Add missing labels to auto labeller (#3537)
• Reduce number of testing frameworks in PRs (again) (#3542)
• Fix json fluent assertion comparion (#3546)
• UDS is a variant, not a scenario in system tests (#3567)
• Temporarily ignore error in logs from CI app (#3571)

Changes since 2.20.0

2.20.0

Summary

⚠️ If you're updating the MSI from version 2.13.0 or earlier and you are missing traces, you should restart the machine after updating. This issue has been fixed in 2.23.0.

• Adds support for .NET 7
• Allow client-side filtering of direct log submission logs using ILogger
• [Profiler] Include GC pauses in profiles
• [Profiler] Improve Code Hotspots to include short spans
• [CI Visibility] Adds support for Buddy CI and improves intelligent test runner
• [Dynamic Instrumentation] Enables async method probes

Changes

Tracer

• [Tracer] refactor trace serialization part 3: env, version, and _dd.origin (#3316)
• [tracer] W3C Trace Context part 1: update propagation style settings (#3446)
• Fix Single Span Sampling tags to be metrics (#3459)
• [Tracer] Use the correct MessagePackStringCache methods for origin and version (#3462)
• Move SpanSampling tag names to Metrics.cs (#3469)
• [Tracer] Always add SiteName and SiteType on AAS Tags and add tags in serialization (#3472)
• Add support for .NET 7 (#3482)
• Add support for filtering ILogger for direct log submission (#3487)
• Include "Datadog-Container-ID" as a header RCM's configuration requests (#3488)
• [Tracer] Add link to the public doc in the logs (#3493)
• [Tracer] Move AAS metadata in settings (#3517)

CI Visibility

• [CI Visibility] - Add a new helper method to the discovery service (#3441)
• [CI Visibility] - Add buddy ci provider support. (#3443)
• [CIVisibility] - Add fallback when pack-object returns a cross device error (#3458)
• [CIVisibility] Fix CIVisibility tests (#3463)
• [CI Visibility] - Add support for ITR backend rate limiting (#3490)
• [CI Visibility] Include Intelligent Test Runner stats tags in TestSession (#3524)

ASM

• update rules to 1.4.2 (#3418)
• [ASM] Add IAST request configuration variables (#3432)
• [ASM] Tainted map for IAST (#3450)

Continuous Profiler

• [Profiler] Replace usage of refcounted object by shared_ptr (#2981)
• [Profiler] Improve CodeHotspots (#3501)
• [Profiler] Fix clang tidy warnings (#3435)
• [Profiler] Add garbage collection in profile (#3476)
• [Profiler] Revisit the way Sample object are used (#3478)

Debugger

• [Dynamic Instrumentation] Improved the instrumentation of async line probes (#3426)
• [Dynamic Instrumentation] Enable async method probe (#3504)
• [Dynamic Instrumentation] Gracefully ignore byref-like types + Added TypeRef to TypeDef resolution functionality (#3505)
• [Dynamic Instrumentation] Fixed the lookup of Symbol Method of async methods (#3481)

Build / Test

• [Test Package Versions Bump] Updating package versions (#3383)
• Use our own VMSS for more builds (#3421)
• Fix builds being broken by "quoted things" in the commit message (#3438)
• Add missing entry to VSConfig (#3440)
• Don't use the DatadogTestLogger for local dev (#3444)
• [Build] macOS multitarget build support (x86_64 and arm64) from x64 mac (#3447)
• Update vsconfig some more (#3448)
• Add a webhook stage to the pipeline (#3449)
• [Build] - Add support for universal binary in osx (#3454)
• Bump DatadogTestLogger version (#3456)
• Pin the fpm version, because latest breaks the pipeline (#3457)
• Fix Exploration tests (#3470)
• Add Instrumentation Verification to AspNetCoreMinimalApisTests (#3474)
• Disable tiered compilation in integration tests (#3479)
• Avoid monitoring the dd-trace tool as it causes a crash on start-up (#3480)
• Handle GRPC test flakiness (#3484)
• Bump DatadogTestLogger version to 0.0.31 (#3492)
• Reduce flake by always choosing a random port for MockTracerAgent (#3496)
• Reenable Large payload tests (#3498)
• [Tracer] Versions conflicts tests are back (#3502)
• Force English for .NET CLI in build scripts (#3508)
• Bump DatadogTestLogger to 0.0.32 (#3509)
• Create custom image for building in GitLab (#3510)
• Reduce number of frameworks tested in PRs (#3511)
• Normalize names of logs and snapshot artifacts for consistency (#3521)
• Limit the number of jobs to the number of cores when building native code on Linux (#3477)
• [Profiler] Bump cppcheck version (#3497)
• [Profiler] Fix Benchmark jobs (#3499)
• [Profiler] Fix Windows Throughput tests (#3503)
• [Profiler] Publish symbols and install procdump as postmortem debugger (#3512)
• [Profiler] Disable tiered compilation in integration tests (#3519)
• [Profiler] Export tracer native symbols in Github Actions (#3523)
• [Profiler] Disable tiered jit compilation only when Tracer is activated (#3525)
• [Profiler] Update actions to avoid noisy warnings (#3528)

Miscellaneous

• Removed internal edges for Kafka instrumentation (#3420)
• Update to .NET 7 SDK includes (#3455)
• Use new install_script_agent7.sh in thew sample Dockerfile (#3464)
• Improvements from CppCheck static analyzer (#3483)
• Adds the Bits .NET in our readme (#3489)
• Added DI to the README (#3514)

Changes since 2.19.0

2.19.0

Summary

⚠️ If you're updating the MSI from version 2.13.0 or earlier and you are missing traces, you should restart the machine after updating. This issue has been fixed in 2.23.0.

Tracer

• IP Collection can now be enabled by setting DD_TRACE_CLIENT_IP_ENABLED (#3419)
• Automatic cleanup of log files that are 31 days or older (#3346)

Changes

Tracer

Enhancements

• Allow colons in global tag values (DD_TAGS) (#3328)
• Delete Log Files That are 31 Days or Older (#3346)
• Make RareSampler configurable (#3360)
• Move SpanSampler into AgentWriter.WriteTrace (#3381)
• Handle client-disconnect scenario in IIS (#3395)
• [Tracer] Add stats_computation_enabled in startup logs (#3400)
• Read performance counter values directly from memory (#3403)
• [Tracer] Reintroduce opt-in ip collection (#3419)

Fixes

• Fix ILogger direct submission when formatter returns null (#3398)
• Fix ASP.NET and ASP.NET Core resource name template expansion (#3409)
• Update SetTag() source generator to avoid incorrect usage (#3415)
• Add integration tests for Azure Functions and fix warning (#3422)
• Fix Azure Functions Runtime V4 distributed tracing (#3423)

CI Visibility

• [CI Visibility] - Add support for agent's event platform proxy. (#3322)
• Datadog Test Logger (#3355)
• [CIVisibility] - Test session visibility support (#3389)
• [CIVisibility] Fix EVP tests by turning off the DD_TRACE_DEBUG flag (#3402)
• Fix BenchmarkDotNet Exporter (#3416)
• [CIVisibility] - Add Test custom configurations support for ITR (#3417)
• [CI Visibility] - Add support for git shallow clone (#3424)
• [CI Visibility] - CheckAgentConnectionAsync rewrite to use the DiscoveryService. (#3433)

ASM

• [ASM] IAST request management (#3384)

Continuous Profiler

• [Profiler] Rename DD_PROFILING_CONTENTION_ENABLED to DD_PROFILING_LOCK_ENABLED (#3414)

Debugger

• [Dynamic Instrumentation] Activating line probe on async methods + Fixed snapshot serialization issues (#3406)

Build / Test

• Fix OSX managed loader issue. (#3386)
• Change list of expected modified files for release (#3387)
• Fix Pipeline when Pull Request variables are not available (#3388)
• Add missing dependencies to coverage and traces_pipeline stages (#3390)
• Apply new PackageReference Conditional to fix IIS tests (#3394)
• Enable Test DataLogger (#3397)
• Small fixes for DatadogTestLogger (#3399)
• Bump version of DatadogTestLogger to remove direct reference to Datadog.Trace (#3401)
• Ensure test parameters are constant across test runs (#3404)
• Fix the env and service names for AppSec throughput tests and benchmarks (#3413)
• Add special ExitCodeException to test suites (#3425)
• Bump DatadogLogger version to 0.0.28 (#3427)
• [Build] Fix exported symbols issue with CMake builds (#3428)

Changes since 2.18.0

2.18.0

Summary

⚠️ If you're updating the MSI from version 2.13.0 or earlier and you are missing traces, you should restart the machine after updating. This issue has been fixed in 2.23.0.

Profiler

• AAS support
• Allocation and Contention profilers are available! Enable them with DD_PROFILING_ALLOCATION_ENABLED=1 and DD_PROFILING_CONTENTION_ENABLED=1 respectively

Changes

Tracer

• Add SpanRateLimiter for Single Span Ingestion (#3282)
• Add SpanSamplingRule for Single Span Ingestion (#3283)
• Implement the SpanSampler into the Tracer (#3286)
• [Test Package Versions Bump] Updating package versions (#3300)
• [Tracer] refactor trace serialization part 2: _sampling_priority_v1 (#3315)
• [CI Visibility] - Add a final try to load the pdb from a module. (#3350)
• Make cgroup ContainerMetadata parsing more lenient (#3354)
• [Test Package Versions Bump] Updating package versions (#3366)
• [Test Package Versions Bump] Updating package versions (#3376)
• Adding Tags Data to Span Started Logs (#3377)

CI Visibility

• [CI Visibility] - Add Intelligent Test Runner support in MSTest testing framework (#3341)

ASM

• [IAST] Implementation of the basic classes that will be used in IAST and the insecure hashing vulnerability detection (#3225)
• [ASM] Remove warnings and fix flake (#3338)
• [IAST] Weak cipher algorithms detection (#3353)
• [ASM] Deduplication of vulnerabilities (#3371)
• [ASM] Stop collecting IP if appsec is disabled, only collect ip for appsec (#3379)

Continuous Profiler

• [Profiler] Add support for named pipes (#3257)
• [Profiler] Sample allocation and contention profilers (#3268)
• [Profiler] Send only activated profilers values in profile (#3337)
• [Profiler] Ensure all sample have high precision timestamps (#3349)
• [Profiler] Save and restore the value of errno in the signal handler (#3370)
• [Profiler] Samples supports timestamps as label (#3372)
• [Profiler] Disable namedpipe flacky test on x86 until fix is found (#3380)
• [Profiler] Customize wall time and CPU sampling constants (#3382)

Serverless

• Update Samples.AWS.Lambda and tests (#3359)
• Add support for nested and generic arguments to Lambda handlers (#3367)
• Run serverless tests on .NET 5.0 and .NET 6.0 (#3369)
• Add better fallback for Lambda service name (#3378)

Fixes

• Fixes Apple Silicon Build (#3358)
• Fix fairly subtle bug with remote config feature ASM_DD (#3344)
• Minor remote config fixes (#3347)
• Close the logger on exit (#3374)

Build / Test

• Fix all build warnings and errors (#3324)
• [asm] Fix flake asm remote rules tests (#3334)
• Fix dotnet install in build (#3348)
• Exclude xml files from dd-trace tool and Datadog.Trace.Bundle (#3363)
• Fix broken package version bump + add GitHub action (#3364)
• Increase allowed variation in SpanSamplerTests to fix flake (#3368)

Miscellaneous

• Revisit CMake projects architecture (#3329)
• Native loader build (#3357)

Changes since 2.17.0

2.17.0

Summary

⚠️ If you're updating the MSI from version 2.13.0 or earlier and you are missing traces, you should restart the machine after updating. This issue has been fixed in 2.23.0.

• Fixes an error in instrumentation leading to an InvalidProgramException when certain code patterns are found in instrumented classes (first identified in EFCache). This issue is present in all previous 2.x versions.
• Fixes ASM one-click activation

Changes

Tracer

• Enable agent-based telemetry by default (#2800)
• [Tracer] refactor trace serialization part 1 (#3135)
• Add fix for method rewriter in non-void method with branch to last return (#3331)
• Add Data Streams Monitoring support when using manual instrumentation with Kafka (#3319)

CI Visibility

• [CIVisibility] Public Api fixes (#3330)

ASM

• Simplify blocking by updating the test rules (#3318)
• Use a different log file for tests using the log entry watcher (#3320)
• Correct index used by activation capability (#3333)

Continuous Profiler

• [Profiler] Bump libdatadog version to 0.9.0 (#3313)

Miscellaneous

• [Tracer] Use Datadog.Trace.Bundle in NugetDeployment samples (#3273)

Build / Test

• Fix documentation URL (#3327)

Changes since 2.16.0

2.16.0

Summary

⚠️ If you're updating the MSI from version 2.13.0 or earlier and you are missing traces, you should restart the machine after updating. This issue has been fixed in 2.23.0.

• [ASM] IP Blocking by remote config
• [Tracer] Making Datadog.Trace.Bundle Nuget package Generally Available. This package contains the full Datadog .NET APM suite for Tracing (automatic, and custom), Continuous Profiler and Application Security Monitoring (ASM).
• [Tracer] Add support for instrumenting interface methods, allowing for instance for more support of some RabbitMq libraries.

Changes

Tracer

• Data Stream Monitoring .NET implementation
  • Initial data streams monitoring propagation (#3174)
  • Add Kafka data streams monitoring implementation (#3192)
  • Added support for IDiscoveryService to DataStreamsManager (#3220)
  • Add checkpointing and aggregation for data streams monitoring (#3191)
  • Fix edge case in DataStreamsWriter (#3304)
  • Disable DSM if DD_TRACE_KAFKA_CREATE_CONSUMER_SCOPE_ENABLED=0 (#3311)
  • GZip the data streams monitoring data sent to the agent (#3249)
  • Make sure we remove the DSM propagation header from SQS attributes (#3312)
• Send Telemetry heartbeat independently of flushed data (#3239)
• Remove unneeded logs (#3265)
• Try loading OpenSSL eagerly on netcoreapp2.0-net5.0 (#3284)
• [Tracer] Add support for instrumenting interface methods (#3256)
• [Tracer] Rename Datadog.Monitoring.Distrib into Datadog.Trace.Bundle (#3263)

CI Visibility

• [CI Visibility] - Test API and Test Suite Visibility (#3276)
• [CI Visibility] - Initialize tracer earlier (#3295)

ASM

• [ASM] ASM_DATA - IP blocking data (#3235)
• [ASM] IP Blocking for .NET Framework (#3207)
• [ASM] upgrade waf and rules (#3274)
• [ASM] remote config update (#3120)
• [ASM] Fix asm RCM tests flakiness (#3266)
• [ASM][RCM] Reduce Flake > fix integration tests log watching (#3287)
• [ASM] Optimize blocking (#3306)

Continuous Profiler

• [Profiler] Fix throughput tests on Linux (#3246)
• [Profiler] Prevent profiler from getting stuck on lost signal (#3255)
• [Profiler] Fix deadlock on alpine on thread creation (#3288)
• [Profiler] Change message when exporting profile (#3290)
• [Profiler] Change lock-duration to lock-time (#3298)
• [Profiler] Initialize signal handler only once (#3308)
• [Profiler] Log INVOKE and CALL warning message only once (#3309)
• [Profiler] Change log level from error to info in StackSamplerLoopManager (#3314)

Debugger

• [Debugger] Adjust debugger snapshot json structure to new schema (#3297)
• [Debugger] Skip DebuggerSnapshotCreatorTests.Limits_LargeDictionary as it's flaky (#3310)

Serverless

• Serverless build tidy up (#3110)
• [Serverless] Support base-class AWS Lambda methods (#3275)

Miscellaneous

• Remove useless logs (#3230)
• Update coreclr files to fix errors on Alpine (#3260)
• Fix endian bug (#3270)

Build / Test

• Throughput for blocking (#3277)
• Re-enable collecting crash dumps on Linux (#3227)
• Add ability to capture hang dumps on Linux (#3229)
• Update the list of expected file changes when doing a version bump (#3259)
• Samples.Probes must always be built (#3262)
• Bump timeouts in installer smoke tests (#3267)
• [CI] Fix permissions issue when uploading crash dumps on Linux in some cases (#3269)
• Exitcode should be zero (#3271)
• Give proper warning if the createdump tool crashes. (#3272)
• Add Apple Silicon support on tracer builds (#3279)
• Improve gitlab deployment (#3285)
• Bump some timeouts to reduce test flake (#3289)
• Fix test version package bump (#3291)
• Skip flakey test ProbesTests.TransparentCodeCtorInstrumentationTest (#3296)
• Add a workaround for missing profiling support in PyPI version of dd-apm-test-agent (#3299)
• Remove workaround for missing profiler support in PyPI version of dd-apm-test-agent (#3303)
• Run IP blocking tests with default rules (#3307)
• Fix flaky DataStreamsWriter test (#3317)

Changes since 2.15.0

2.15.0

Summary

⚠️ If you're updating the MSI from version 2.13.0 or earlier and you are missing traces, you should restart the machine after updating. This issue has been fixed in 2.23.0.

• Added HotChocolate GraphQL integration (v11.x.x+)
• Added instrumentation for Process.Start
• Added endpoint profiling for continuous profiler

Changes

Tracer

• [Tracer] Tracking sampling mechanism with _dd.p.dm tag (#2982)
• Obfuscate ids with commas and obfuscate WCF requests (#3026)
• [Tracer] Stats computation: Drop P0 traces (#3048)
• [Tracer] Add telemetry for the stats computation feature (#3053)
• [Tracer] When stats computation is enabled, normalize and obfuscate traces (#3054)
• Fix build when using C#11 (#3102)
• Add unchecked to FNV hash calculations (#3109)
• Add VarEncodingHelper for use in Data Streams Monitoring (#3129)
• Add a thread-safe Random implementation (for Data streams monitoring) (#3130)
• Add hash helpers for data streams monitoring (#3131)
• Compile Regex in CustomSamplingRule (#3132)
• [Tracer] Add DiscoveryService to Tracer initialization and update StatsAggregator to use Agent feature client_drop_p0s (#3152)
• Refactor DiscoveryService to handle changes to settings and agent upgrade (#3154)
• Remove redundant string allocations (#3169)
• Add debug log in Api when sending to agent fails (#3180)
• Update DDSketch parameters for DSM to match backend (#3216)
• Add support for specifying a Content-Encoding in IApiRequest (#3238)
• Add NullDiscoveryService for CI visibility and testing (#3253)
• Add instrumentation for Process.Start (#3146)
• HotChocolate GraphQL integration (#3004)
• Fix ServiceStack SendReceive instrumentation (#3084)
• Add Kafka consumer group tag (#3099)

CI Visibility

• [CIVisibility] Adds support to disable the tracer profiler + Lazy loading the tracer settings (#3108)
• [CIVisibility] - Counters based Code Coverage (#3134)
• [CIVisibility] - Fix InternalFlushEventsAsync task creation (#3148)
• [CIVisibility] Include ci-app-libraries-dotnet team as a CODEOWNER of PDB folder. (#3151)
• [CIVisibility] - Coverage fixes and improvements (#3170)
• [CIVisibility] - Correctly extract commit message from AppVeyor (#3183)
• [CIVisibility] - Fetch committer and author in buildkite and bitrise (#3187)
• [CIVisibility] - Move the CI Visibility check to native (#3196)
• [CIVisibility] Intelligent test runner (#3075)

ASM

• [ASM] Blocking a request on .NET Core (#3066)
• [ASM] 1-Click activation (#3081)
• [ASM] Waf and ruleset update (#3087)
• [ASM] Increase waf timeout for all integration tests (#3124)
• [ASM] Features rename (#3223)
• [ASM] Waf memory leak fix (#3237)
• [ASM] Prevent waf from breaking app if non compatible native library file is loaded by tracer (#3251)
• Implement rcte2 - Configuration apply status (#3175)
• Remote Configuration Tracer Extension 3 - Remote Configuration Client capabilities (#3186)

Continuous Profiler

• [Profiler] Add continuous profiler checks to dd-trace (#3167)
• [Profiler] Implement endpoint profiling (#3015)
• [Profiler] Use libdatadog as buffer (#2990)
• [Profiler] Add new profile tags (#3093)
• [Profiler] Update libdatadog to 0.8.0 (#3111)
• [Profiler] Measure exceptions and allocations profilers (#3112)
• [Profiler] Add contention profiler based on Clr Events (#3115)
• [Profiler] Activate the CPU profiling by default (#3121)
• [Profiler] Return string view for symbol resolution (#3127)
• [Profiler] Disable tracer for profiler timeit usage (#3128)
• [Profiler] Update SamplesCollectorTest (#3145)
• [Profiler] Add exceptions in BuggyBits demo app (#3150)
• [Profiler] Performance improvements for samples management (#3153)
• [Profiler] Measure contention profiler impact (#3172)
• [Profiler] Ensure that all API HRESULT are checked (#3179)
• [Profiler] Make exceptions profiler more real for BuggyBits (#3188)

Debugger

• [Debugger] Fixed serialization issues in producing snapshots (#3064)
• Support Remote Configuration Management (#3077)
• [Debugger] Add support for probes in async methods (#3079)
• Support UDS and Named Pipes for Live Debugger (#3125)
• [Debugger] Stabilized the instrumentation of Method Probes and Line Probes (#3164)
• Remove ImmutableDebuggerSettings (#3166)
• [Debugger] Fix non-deterministic failure in UDS Integration Test (#3168)
• [Debugger] Fix Debugger Method Probe Async Tests (#3199)
• Use LifeTimeManager for LiveDebugger shutdown events (#3200)
• Run Remote Configuration system tests (#3212)
• [Debugger] Resolving Live Debugger's code coverage degradation (#3245)
• Disable async probe (#3248)

Fixes

• [Tracer] Exit early during automatic instrumentation when the application is .NET Core 1.x (#3114)
• [Tracer] Refactor stats computation into StatsAggregator (#3133)

Miscellaneous

• [Tracer] Ignore more assemblies and don't resend them all at each run (#2966)
• [Test Package Versions Bump] Updating package versions (#3008)
• [CI] Add doc to run smoke tests locally (#3088)
• Small refactoring to remove duplicate code around SocketException detection (#3123)
• Refactor transport strategies code (#3126)
• Refactor the exclude list for assembly instrumentation (#3137)
• Remove redundant string allocations for ApiResponses (#3144)
• Set the version of the native loader (#3147)
• Fix warnings (#3155)
• Rename RuleBasedSampler to TraceSampler (#3156)
• Add a simple pooling mechanism for DDSketches (#3177)
• Avoid multiple configuration source enumeration (#3178)
• Update repo readme about security issues (#3185)
• Fix ICorProfilerInfo11 framework support message (#3194)
• Low hanging fruit startup optimization (#3195)
• Don't overwrite the origin (#3221)

Build / Test

• [tests] clean up test project references (#3198)
• Remove obsolete snapshot URI (#3165)
• Fix order of spans in WcfTests (#3162)
• [Tracer] Add tests for stats computation feature (#3047)
• [Snapshots] Print a small diff at the end of the tests (#3098)
• Make sure we throw if uploading artifacts to S3 fails in gitlab (#3116)
• Automatically trigger AAS deploy with code freeze (#3118)
• Update GitLab to use newer build image (#3136)
• Skip the Razor Pages diagnostic listener tests on Linux .NET Core 2.1 (#3140)
• Enable tool integration tests on Windows (#3149)
• Exclude named pipe timeout from build log check (#3157)
• Ensure any test artifact has the job attempt number as part of the name. (#3173)
• Test RemoteConfigurationApi instead of using file provider (#3182)
• Add support for Microsoft.Data.SqlClient 5.x.x (#3184)
• Schedule CI to run 10 times on a Saturday morning (#3202)
• [tests] show only diff in test failures when comparing long multi-line strings (#3205)
• Fix flakey test Http_Headers_Contain_ContainerId (#3206)
• Fix WindowsContainer tracing sample (#3208)
• Added integration tests to verify that the tracer still sends traces if the agent doesn't work properly. (#3211)
• Small testing improvements (#3222)
• [Testing] Improve span metadata rules (#3226)
• Add manual repo clone to unit_tests_macos (#3232)
• Bump timeouts in DiscoveryServiceTests to reduce flake (#3233)
• Ensure we always run exploration tests on master (#3243)
• Add remote config label (#3244)
• [Snapshots] Diff on base branch (#3250)

Changes since 2.14.0

2.14.0

Summary

⚠️ If you're updating the MSI from version 2.13.0 or earlier and you are missing traces, you should restart the machine after updating. This issue has been fixed in 2.23.0.

• GA release of the continuous profiler, adds support for NuGet-based deployment
• Addresses a double-billing issue in AAS

Changes

Tracer

• Allow null filenames in MultipartItem when using HttpClientRequest (#3024)
• Fix possible zero in traceid or spanid (#3033)
• [Tracer] Send AAS and Sampling Prio on all trace chunks (#3040)
• Add .NET Framework 4.8.1 to FrameworkDescription (#3100)

CI Visibility

• [CI Visibility] Disable non testhost proc instrumentation on dotnet command (#3018)
• [CI Visibility] Refactor CI Visibility payloads with the EvpPayload abstraction (#3032)
• [CI Visibility] Stop using OS separator in relative paths (#3034)
• [Ci Visibility] - Update logs format to the new spec (#3037)
• [CI Visibility] Fix Coverage version type (#3039)
• [CI Visibility] Upload Git tree metadata (#3045)
• [CIVisibility] Change build file and CODEOWNERS (#3046)
• [CIVisibility] Add support to bypass some ci environment variables (#3082)
• [CIVisibility] Fix CIAgentlessWriter flush algorithm (#3096)

Continuous Profiler

• [Profiler] Implement ICorProfilerCallback::EventPipeEventDelivered to receive CLR events synchronously (#2998)
• [Profiler] Do not build the profiler native code in parallel for ASAN (#3021)
• [Profiler] Check profiler log files for smoke tests (#3038)
• [Profiler] Update libunwind to 1.6.2 (#3043)
• [Profiler] Disable profiler when running in a container with <1 CPU (#3050)
• [Profiler] Try to use default UDS path on Linux (#3057)
• [Profiler] Fix generic types name for exception and allocation profilers (#3058)
• [Profiler] Remove DD_DOTNET_PROFILER_HOME (#3073)
• [Profiler] Improve error reported by libddprof (#3089)
• [Profiler] Fix Profiler integration tests in VS (#3090)
• [Profiler] Fix Sanitizer jobs (#3091)
• [Profiler] Remove beta version for the profiler (#3092)
• [Profiler] Change profiler library output directory on linux (#3094)

Debugger

• [Debugger] Fix issue where line probes with backslashes did not work (#3028)
• Disable non-deterministic tests (#3030)
• [Debugger] Leverage AdaptiveSampler for probes (#3078)

Build / Test

• Rename native projects in preparation for package layout refactor (#3016)
• [CI] Allow throughput to run on benchmark branches (#3031)
• Always use native loader for tests (part of package layout update) (#3036)
• [AppSec] Enable AppSec in installer smoke tests (#3055)
• Update package layouts & ship continuous profiler in dd-trace/NuGet (#3060)
• Enable debug logs for smoke test (#3062)
• Run MSI smoke tests against x86 runtime with the x64 installer (#3065)
• Add a very simplistic snapshots checker (#3068)
• Add a few smoke tests for the dd-trace NuGet package (#3070)
• Small build tidy up - improve log file checking (#3071)
• Delete UpdateMsiContents Target and SyncMsiContent (#3074)
• More build tidying up (#3076)
• Fix build error in OSX when using sdk version 6.0.400 (#3083)
• [Snapshots] Add a note on version mismatch tests (#3086)
• Centralise handling of HTTP requests in MockTracerAgent (#3095)
• Increase smoke tests timeout (#3101)
• Force fpm gem install to not update dependencies (#3104)
• Use default monitoringHome path if env var is empty (#3105)

Miscellaneous

• Remove x-datadog headers from SQS message attributes (#3044)
• Fix OSX native loader build issue (#3052)
• Fix race condition during profilers initialization (#3056)
• Add note on 'round-tripping' to Instrumentation Verification doc (#3067)
• Fix macOS logs and add DD_INTERNAL_NATIVE_LOADER_PATH env var (#3069)
• Zippy1981/add note to update documentation when you add an instrumentation (#3080)

Changes since 2.13.0

2.13.0

Summary

• The http.route, http.url, http.useragent, and http.client_ip tags have been standardised
  • As part of this change, the (obfuscated) querystring is now reported in http.url. Set DD_HTTP_SERVER_TAG_QUERY_STRING=false to disable querystring collection.
• Fixes a bug where x-datadog-tags propagation header was added even when empty or disabled
• Add support for continuous profiler on CentOS7

Changes

Tracer

• [Tracer] Fix span properties (#2918)
• [Tracer][AAS] Add Resource Id on chunks to avoid double billing (#2960)
• Add support for Multipart form data to ApiWebRequest and HttpClientRequest (#2962)
• Add FNV-64bit hash implementation for Data Streams Monitoring (#2973)
• [Tracer] Do not add x-datadog-tags header when empty or disabled (#3001)
• [Profiler] Fix Arm64 installer smoke tests (#3002)

ASM

• [ASM] Tags standardization, http.route, http.url, http.useragent, http.client_ip (#2915) : in http.url, query string is now collected by default
• Non-backtracking regex from .NET 7.0 (#3009, #3022, #3025)

Continuous Profiler

• [Profiler] Refactor raw sample processing (#2917)
• [Profiler] Ensure the profiler run on CentOS7 (#2950)
• [Profiler] Deactivate profiling on linux if wrapper library is not used (#2967)
• [Profiler] Bump libddprof to libdatadog (former libddprof) 0.7.0 (#2970)
• [Profiler] Run Profiler unit tests in container in Github Actions (#2975)
• [Profiler] Minor cleanup (#2977)
• [Profiler] Remove shared managed code (#2978)
• [Profiler] Use net6.0 for integration tests (#2987)
• [Profiler] Deactivate profiler on ARM64 (#2994)

Debugger

• [Debugger] Introducing the Live Debugger product (#2965)
• Temporarily disable Live Debugger (#3012)
• Increase WaitForExit time in DebuggerSampleProcessHelper (#3013)

Build / Test

• Installer test tweaks (#2963)
• [Test Package Versions Bump] Updating package versions (#2972)
• Update vendored version of Newtonsoft.Json (#2980)
• Fix Aerospike tests and convert to snapshots (#2985)
• Remove confusing DD_HEADER_TAGS configuration in OwinWebApi2Tests (#2986)
• Ignore process_id in smoke test snapshots on Linux (#3003)
• [CI] Allow throughput to run on benchmark branches (#3005)
• Fix the path to the native loader (#3006)
• Try disabling telemetry in ci (#3010)
• [Tracer] Add Fluent API to validate integration spans and produce documentation of tracing integrations -- Redo (#3011)
• Downgrade version of dotenv installed with fpm (#3014)
• Use macos-11 for builds instead of macos-10.15 as that is deprecated (#3035)

Miscellaneous

• [CI Visibility] - Add support for CoveragePayload message pack serialization (#2969)
• [CI Visibility] Send Code Coverage Payload to the agentless endpoint (#2983)

Changes since 2.12.0

2.12.0

Known issues

• x-datadog-tags header is propagated to downstream services even if empty. The setting to disable it falls into the same bug and thus doesn't work. Do not use this version if some of the services you interact with do not accept all new headers. Fixed in #3001

Summary

• [Tracer/ASM] Allows horizontal tag propagation (new x-datadog-tags header sent to downstream services), and enables optional user id propagation.
• [Profiler] Build for Linux Arm64
• [Tracer] Add support for latest StackExchange.Redis release

Changes

Tracer

• Propagate trace tags to downstream services (horizontal propagation) (#2897)
• Clean the way we build the tracer native code on Linux (#2943)
• Log the number of dropped spans when flushing the buffer (#2948)
• Ensure we release cached StringBuilder instances back to the StringBuilderCache (#2956)
• Allow user id to be propagated (#2968)
• Add support for StackExchange.Redis 2.6.48 (#2959)

Continuous Profiler

• [Profiler] Run profiler tests on .NET 6 (#2909)
• [Profiler] Reenable sampling test (#2913)
• [Profiler] Fix parsing thread information (#2929)
• [Profiler] Disable walltime profiler during exception tests (#2935)
• [Profiler] Do not dereference nullptr to avoid crashing (#2940)
• [Profiler] Clean the way we build the profiler on Linux (#2942)
• [Profiler] Remove profiler managed code (#2946)
• [Profiler] Build and package the Profiler for Arm64 architecture (#2952)
• [Profiler] Bump libddprof version to 0.6.0 (#2958)

Debugger

• Add instrumented IL verification (#2829)

Build / Test

• Setup Code Scanning for dd-trace-dotnet (#2286)
• Add named pipe support to the mock agent + convert telemetry tests to Snapshot (#2816)
• Add smoke tests for the distribution NuGet on Linux (#2878)
• [Pipeline Monitoring] Make it run at the end in any case (#2890)
• Save loader and profiler native symbols from GitLab (#2896)
• [Test Package Versions Bump] Updating package versions (#2901)
• [codeowners] Rename ci-app-tracers to ci-app-libraries (#2919)
• Convert StackExchange.Redis to snapshots and add support for latest (#2921)
• Fix changed error message in Kafka 1.9.0 (#2922)
• Update usages of Newtonsoft.Json to 13.0.1 across test applications (#2923)
• [Tracer] Convert SQS integration tests to snapshots (#2926)
• [Tracer] Convert ServiceStackRedis integration tests to snapshots (#2927)
• Fix NuGet installer smoke tests not running (#2928)
• Allow queuing multiple connection for acceptance in UDS test agent (#2930)
• [Build] Fix S3 upload (#2932)
• [Tracer] Add throughput tests for stats computation (#2936)
• Add smoke tests for the MSI installer (#2937)
• Add smoke tests for windows-tracer-home.zip (#2941)
• Add smoke tests for dotnet-tool instrumentation on Windows (#2944)
• Add Smoke testing of the NuGet package on Windows (#2947)
• Add smoke tests for dotnet-tool instrumentation on Linux (#2949)
• Add support for alpine to the dd-trace tool (#2951)

Miscellaneous

• Bump NuGet.CommandLine from 5.8.1 to 5.9.2 in /tracer/build/_build (#2907)
• Exclude guid-like assembly names from telemetry (#2954)

Changes since 2.11.0