Agent

Prelude

Release on: 2025-05-22

• Please refer to the 7.66.0 tag on integrations-core for the list of changes on the Core Checks

Upgrade Notes

• If you use a custom Agent username and password on Windows with an Active Directory domain account and you want to remotely upgrade the Agent using Fleet Automation then you must provide the DDAGENTUSER_PASSWORD option when upgrading to 7.66 or later. For more information see the features release notes.

New Features

• Added a new WLAN check that monitors the Wi-Fi interface on the host system. This check is only available for macOS systems.

• Fleet Automation now supports remote upgrades when using a custom Agent username and password on Windows.

  Windows stores the password as an encrypted LSA local private data object that is only accessible to local Administrators. Windows Service Manager stores service account passwords in the same location. For more information, see the Microsoft documentation on Storing Private Data and Private Data Objects.

  Uninstalling the Agent removes the encrypted password from the LSA.

  To avoid providing and manually managing the account password, consider using a Group Managed Service Account (gMSA). For more information, see Installing the Agent with a gMSA account.

• Adds support for persisting of non-core integrations during Agent upgrades on Windows platforms. To disable, set the INSTALL_PYTHON_THIRD_PARTY_DEPS="0" property during the installation of the MSI.

• adds the ability for the Agent to tail logs via the kubelet's API.

• Support multiple authentication methods for a subnet in network devices autodiscovery.

• Use cdpCacheSecondaryMgmtAddr and cdpCacheAddress for CDP topology links in case cdpCachePrimaryMgmtAddr is empty or of an unsupported type.

• Enable language detection via tracers metadata

Enhancement Notes

• Add a build option (--glibc, enabled by default) to build the Agent on glibc environment. On the other libc environments like musl, the Agent should be built with --no-glibc option. The option enables system-probe gpu module and corechecks gpu collector using github.com/NVIDIA/go-nvml which depends on a glibc-extended definition.
• OpenTelemetry instrumentation scope attributes are now converted into span attributes.
• Utilize distributed senders and rtt fairness algorithms to improve logs pipeline throughput and fairness.
• Adds | separator to the DogstatsD debug table (from agent dogstatsd-stats) when not requesting JSON output. This allows the table to render properly in markdown format.
• Get the k8s cluster name from an AKS node label if present
• APM: Improve debug logging for ignore_resources configuration by showing what rule resulted in a trace being ignored.
• Added a new feature flag disable_operation_and_resource_name_logic_v2 in DD_APM_FEATURES that replaces enable_operation_and_resource_name_logic_v2. The new operation name logic for OTLP is now opt-out instead of opt-in.
• Added an option for the Oracle integration to template the database instance identifier.
• The Oracle integration now supports the empty_default_hostname option to omit host from metrics
• Added the exclude_hostname option to the Oracle integration
• The OTLP receiver gRPC server in the trace agent now respects the config otlp_config.receiver.protocols.grpc.max_recv_msg_size_mib or env var DD_OTLP_CONFIG_RECEIVER_PROTOCOLS_GRPC_MAX_RECV_MSG_SIZE_MIB.
• added new expvar "submission_error_count" on process endpoint to be shown during user status checks
• Reduce the memory footprint of the logs pipeline by eliminating unnecessary fields in the log payload.
• The Windows Agent MSI now sets the Agent account password to the provided DDAGENTUSER_PASSWORD value when it is a local account. Previously, if the provided password did not match the account password, the Agent would fail to start.

Bug Fixes

• Addressed a bug in the cluster-agent API that prevented tag extraction for annotations from working due to client side filtering. The fix was implemented in both the node-agent and the cluster-agent. Now, node-agent clients specify the annotations filter when querying the cluster-agent.
• APM: Fix an issue where apm_config.ignore_resources only removes the root span instead of discarding the whole trace when using OTLP ingestion.
• When using OTLP ingest with metrics, the instrumentation_scope_metadata_as_tags option now outputs the instrumentation_scope tag instead of the deprecated instrumentation_library tag.
• Prevents the index out of range error caused when trying to match inspect layer digests to history layers on some images.
• Fix clusterchecks dispatching on the Cloud Foundry Cluster Agent
• Fixed an issue in the KSM check where, when using pod_collection_mode: node_kubelet, the Agent reported incorrect values for the kubernetes_state.container.status_report.count.waiting metric.
• Fixes a bug that Agent OTLP ingestion fails to start when the config otlp_config.receiver.protocols.grpc.max_recv_msg_size_mib or env var DD_OTLP_CONFIG_RECEIVER_PROTOCOLS_GRPC_MAX_RECV_MSG_SIZE_MIB is set to a string.
• Process Agent files are added to the flare archive instead of displaying "no session token provided".

Other Notes

• Add a new Agent telemetry tag auth to the API telemetry metrics. This tag is used to evaluate the impact of reworking the authentication system for inter-process communication.
• Add a new metric counter to the Agent telemetry for status rendering errors. This is used to detect potential issues with an ongoing change in the status rendering.

Datadog Cluster Agent

Prelude

Released on: 2025-05-22 Pinned to datadog-agent v7.66.0: CHANGELOG.

New Features

• For workload selection in auto-instrumentation, users can now use the Kubernetes native valueFrom as an alternative to value in ddTraceConfigs. This enables dynamic, user-defined and label based value propagation to the tracing SDKs, like DD_SERVICE.
• Collect EndpointSlice manifests in the orchestrator check.
• Tag resources from Cluster Agent Orchestrator check with all static tags.

Bug Fixes

• Fix major data races in the orchestrator check for the Kubernetes resource collection.
• Fix data race in autodiscovery cluster checks provider.
• Fix data race in autodiscovery kube services provider.
• Fixes an issue with autoinstrumentation where sometimes a DD_SERVICE is not consistent between containers and init containers.
• The auto-instrumentation webhook no longer mutates the istio-proxy container. This fixes an issue with Kubernetes-native sidecars and the istio service mesh where a standard sidecar is moved to be the first init container by istio after it was mutated by auto-instrumentation.
• The cluster-agent kubernetes_metadata API now supports client specified annotations filtering. Clients can pass along filters as query parameters like '?filter=abc&filter=def'.