Components

AI Guard

• ✨ Copy anomaly detection tags to AI Guard spans (#11319 - @smola)
• ✨ Collect client IP tags for AI Guard requests (#11233 - @smola)

Application Security Management (WAF)

• ✨ Collect Datadog security-testing headers on HTTP server entry spans (#11418 - @christophe-papazian)
• ✨ Add server.request.body.filenames and files_content for GlassFish/Payara (#11267 - @jandro996)

Configuration at Runtime

• 🐛 Request feature flag config on the first RC poll (#11465 - @leoromanovsky)

Continuous Integration Visibility

• ✨ Propagate Jenkins custom parent ID (#11348 - @juan-fernandez)
• ✨ Update JUnit4 instrumentation to fire test suite events for Bazel (#11322 - @daniel-mohedano)
• ✨ Propagate test skipping enabled tag to CI Visibility test spans (#11300 - @anmarchenko)
• ✨ Use test_srcdir as virtual repo root for bazel runs (#11273 - @daniel-mohedano)
• 🐛 Consider Gradle wrapper as a wrapper for headless calculations (#11266 - @daniel-mohedano)
• ✨ Report bazel as provider in telemetry for payload-in-files mode (#11207 - @daniel-mohedano)

Crash Tracking

• ✨ Redacted registry memory mapping in crash tracking (#11025 - @bric3)

Database Monitoring

• ✨ Add a new dynamic_service DBM propagation mode (#11432 - @amarziali)
• ✨ Improve DBM commenter (#11339 - @amarziali)

Dynamic Instrumentation

• ✨ debugger/symdb: add upload metadata fields to upload event message (#11329 - @andreimatei)

ML Observability (LLMObs)

• 🐛 emit session_id as top-level field + propagate via context (#11371 - @jessicagamio)

Metrics

• ✨⚡ Update client-side stats to use light weight Hashtable (#11382 - @dougqh)
• ✨⚡ Defer MetricKey construction to the aggregator thread (#11381 - @dougqh)
• ✨⚡ Use bitmask SpanKindFilter for per-span eligibility in metrics aggregator (#11380 - @dougqh)
• ✨ Support OTLP runtime metrics with OTel-native naming (#11318 - @link04)
• ✨ Allow ignoring the agent version when checking for trace stats computation support (#11064 - @bric3)

OpenFeature

• 🐛 Recover OpenFeature provider after initialization timeout (#11474 - @leoromanovsky)
• 🐛 Request feature flag config on the first RC poll (#11465 - @leoromanovsky)
• 🐛 use delta temporality for OTLP metrics export (#11426 - @sameerank)
• 🐛 read OTEL_SERVICE_NAME for metrics resource (#11424 - @sameerank)

Profiling

• 🐛 Bump java-profiler to 1.44.0 for more critical stability fixes (#11501 - @jbachorik)
  • 🐛 Bump java-profiler to 1.43.0 for critical stability fixes (#11475 - @jbachorik)
• ✨ Enable publishing process context by default (#11288 - @ivoanjo)

Telemetry

• ✨ Add Telemetry for Extension Finder SPIs (#11298 - @mhlidd)
• ✨ Introduce OTel SPI Metrics (#11297 - @mhlidd)
• ✨ Update Baggage Metrics for Extract (#11278 - @mhlidd)

Testing

• ✨ 🪞 9979 - Record detailed instrumentation errors during tests (#10300 - @deejgregor - thanks for the contribution!)

Trace context propagation

• ✨ Add lazy-transformer to KeyClassifier for deferred header decoding (#11466 - @amarziali)

Tracer core

• ✨⚡ Cache hashCode on UTF8BytesString (#11444 - @dougqh)
• 🐛 Fix DDSpan.addThrowable crashing when exception getMessage() throws (#11428 - @ValentinZakharov)
• 🐛 Avoid extracting the baggage from null values (#11396 - @amarziali)
• ✨⚡ Update client-side stats to use light weight Hashtable (#11382 - @dougqh)
• ✨⚡ Defer MetricKey construction to the aggregator thread (#11381 - @dougqh)
• ✨⚡ Use bitmask SpanKindFilter for per-span eligibility in metrics aggregator (#11380 - @dougqh)
• 🐛 Fix bugs in GenerationalUtf8Cache constructor and access-time handling (#11323 - @dougqh)
• ✨ Remove deprecated internal spanBuilder methods (#11287 - @amarziali)
• 🐛 Fix peer IP tag in Play 2.3/2.4/2.5 (#11274 - @smola)
• ✨ Move network.client.ip out of AppSec into HttpServerDecorator (#11208 - @smola)

Instrumentations

AWS Lambda instrumentation

• ✨ force placeholder resource so the Lambda Extension drops dd-tracer-serverless-span (#11313 - @zarirhamza)

AWS SDK instrumentation

• 🐛⚡ Skip ClassCastException on every DynamoDB request in AWS SDK v2 instrumentation (#11285 - @dougqh)

Eclipse Vert.x instrumentation

• 🐛 finish vertx.route-handler via RoutingContext.addEndHandler fallback (#11312 - @zarirhamza)

gRPC instrumentation

• ✨⚡ Avoid Metadata.key allocations on grpc (#11351 - @amarziali)

JDBC instrumentation

• ✨ Mute telemetry when Connection.getClientInfo fails (#11412 - @amarziali)

JMS instrumentation

• ✨ Have a fully JMS 1.0 compatible instrumentation (#11413 - @amarziali)

OpenTelemetry instrumentation

• ✨⚡ Use FAST_LANE prioritization for OTLP trace export (#11447 - @mcculls)
• ✨ Add Additional OTel JVM Runtime Metrics and Gate "Developmental" Metrics (#11411 - @mhlidd)
• 🐛 Fix the behaviour of asynchronous counters and up-down counters (#11332 - @mcculls)
• 🐛 Avoid potential shutdown delay when using GRPC protocol for OTLP (#11321 - @mcculls)
• ✨ Support OTLP runtime metrics with OTel-native naming (#11318 - @link04)
• 🐛 Fix OtelLogRecordProcessor schedule (#11315 - @mcculls)
• 💡⚡ Reduce allocation rate when marshaling OTLP data (#11296 - @mcculls)
• ✨ Enable publishing process context by default (#11288 - @ivoanjo)

Play Framework instrumentation

• 🐛 Fix peer IP tag in Play 2.3/2.4/2.5 (#11274 - @smola)

Reactor instrumentation

• ✨⚡ avoid attaching context if it's already attached (#11393 - @amarziali)

Servlet instrumentation

• 🐛 Tolerate AbstractMethodError for servletRequest remote port (#11403 - @amarziali)
• 🐛 avoid NPE when headerNames is null (#11394 - @amarziali)

All other instrumentations

• 🧹 Remove deprecated startSpan and use integration name for telemetry (#11181 - @amarziali)