1.28.0

Components

Application Security Management (IAST)

• ⚡🧹 Refactor http headers to reduce memory allocations (#6516 - @manuel-alvarez-alvarez)
• Add IAST exclusion for OpenTelemetry SDK package (#6511 - @smola)
• ⚡ Replace string.format calls with regular concatenation (#6510 - @manuel-alvarez-alvarez)
• Add call sites in spring ldap template (#6509 - @manuel-alvarez-alvarez)
• Add IAST exclusion for org.openjdk.jol.vm (#6490 - @smola)
• Detect servlet configuration vulnerabilities with IAST (#6300 - @jandro996)

Continuous Integration Visibility

• Enable flaky tests retries based on remote settings (#6454 - @nikita-tkachenko-datadog)
• Implement flaky tests retries for Scalatest (#6447 - @nikita-tkachenko-datadog)
• Implement flaky test retries for JUnit 4 (#6435 - @nikita-tkachenko-datadog)
• Synchronously flush test session finish event (#6434 - @nikita-tkachenko-datadog)
• Implement flaky test retries for Test NG (#6347 - @nikita-tkachenko-datadog)

Dynamic Instrumentation

• ✨ Add TriageReport for Dynamic Instrumentation (#6519 - @jpbempel)
• Support special case of empty catch block (#6507 - @jpbempel)
• Use java.io.tmpdir for classfile dump directory (#6486 - @jpbempel)
• ✨ Add @exception as local var in snapshots (#6480 - @jpbempel)
• Rename isUndefined expression to isDefined (#6470 - @jpbempel)
• Enable diagnostics on debugger track (#6462 - @jpbempel)
• 🐛 Fix issue for parsing classes from debugger.symbol (#6455 - @jpbempel)
• Enforce ordering of probe instrumentation (#6444 - @jpbempel)
• Add finally block for @duration metric (#6436 - @jpbempel)
• Fix support of string primitives for index in EL (#6429 - @jpbempel)

Metrics

• 🔍 Provide summary of JMXFetch for tracer-flare (#6439 - @mcculls)
• 🔍 Tidy up tracer health metrics (#6438 - @mcculls)
• Keep historical tracer health/span counts (#6426 - @mcculls)
• 🔍 Add tracer health and span count summaries to tracer-flare (#6416 - @mcculls)

OpenTracing

• 🧪 Introduce blackhole span (#6326 - @amarziali)

Profiling

• Update the enablement logic for allocation and liveheap (#6492 - @jbachorik)
• add operation label to endpoint events (#6463 - @richardstartin)
• ✨ Proactively cleanup dangling JFR repositories on startup (#6441 - @jbachorik)
• Update ddprof to 0.94.0 (#6433 - @jbachorik)
• Stop collecting jdk.ClassLoadingStatistics (#6538 - @richardstartin)

Telemetry

• Improve telemetry log deduplication (#6525 - @smola)
• Decouple telemetry logs from minimum log level (#6493 - @smola)
• 🐛 Fix Telemetry App-Started event retry that prevents the application from exiting. (#6451 - @ygree)

Trace context propagation

• Be consistent when checking if tasks are excluded from wrapping/injection (#6446 - @mcculls)

Tracer core

• 🔍 Rename version.txt to tracer_version.txt in tracer-flare (#6532 - @mcculls)
• 🔍 Update Java tracer flare name to be dd-java-flare-<runtimeId>-<currentTimeMillis>.zip (#6506 - @mcculls)
• 🔍 Add thread-dump to tracer-flare when triage or debug mode is enabled (#6485 - @mcculls)
• 🔍 Support delayed trigger of local triage report (#6479 - @mcculls)
• 🔍 Add Instrumenter metrics to tracer-flare (#6472 - @mcculls)
• 🧪 Introduce blackhole span (#6326 - @amarziali)

Instrumentations

Apache Spark instrumentation

• Add spark SQL plan the spark.stage spans (#6305 - @paul-laffon-dd)

JAX-RS instrumentation

• 🐛 support PATCH and other custom jaxrs annotations (#6471 - @amarziali)

JMS instrumentation

• Add auto-instrumentation for Message Driven Beans (#6216 - @am312)

Kafka instrumentation

• Added messaging.kafka.bootstrap.servers to consume spans (#6327 - @kr-igor)

OpenTelemetry instrumentation

• ✨ Add support for tracestate extraction from OpenTelemetry API (#6362 - @PerfectSlayer)

Trace annotations instrumentation

• 🧪 Introduce blackhole span (#6326 - @amarziali)

All other instrumentations

• ✨ Extract user principal on jakarta servlets 5+ (#6527 - @amarziali)
• ✨ Add missing error tags to process spans (#6489 - @smola)
• 🐛 log4j: preserve mdc when copied and injection is disabled (#6487 - @amarziali)
• Don't create a process span for agent internal threads (#6478 - @bantonsson)
• 🐛 zio: fix context propagation (#6442 - @amarziali)