v0.21.0

This release includes version v0.117.0 of the upstream Collector components.

The individual upstream Collector changelogs can be found here:

v0.117.0:

• https://github.com/open-telemetry/opentelemetry-collector/releases/tag/v0.117.0
• https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.117.0

Highlights from the upstream Collector changelog

🛑 Breaking changes 🛑

• otelcol: Remove warnings when 0.0.0.0 is used (open-telemetry/opentelemetry-collector#11713, open-telemetry/opentelemetry-collector#8510)
• pkg/ottl: removed the ability to reference entire parent objects. (open-telemetry/opentelemetry-collector-contrib#36872)
  Statements like set(cache["resource"], resource) in non-resource contexts will no longer work.

💡 Enhancements 💡

• pkg/ottl: Add a new ottl trim function that trims leading and trailing characters from a string (default- whitespace). (open-telemetry/opentelemetry-collector-contrib#34100)
• statsdreceiver: Add UDS support to statsdreceiver (open-telemetry/opentelemetry-collector-contrib#21385)
• tailsamplingprocessor: Support hot sampling policy loading (open-telemetry/opentelemetry-collector-contrib#37014)

🧰 Bug fixes 🧰

• internal/sharedcomponent: Fixed bug where sharedcomponent would use too much memory remembering all the previously reported statuses (open-telemetry/opentelemetry-collector#11826)
• pkg/ottl: fix handling of nested maps within slices in the flatten function (open-telemetry/opentelemetry-collector-contrib#36162)

---

v0.116.0:

• https://github.com/open-telemetry/opentelemetry-collector/releases/tag/v0.116.0
• https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.116.0

Highlights from the upstream Collector changelog

🛑 Breaking changes 🛑

• pdata/pprofile: Remove deprecated Profile.EndTime and Profile.SetEndTime methods. (open-telemetry/opentelemetry-collector#11796)
• processor/tailsampling: Reverts open-telemetry/opentelemetry-collector-contrib#33671, allowing for composite policies to specify inverted clauses in conjunction with other policies. This is a change bringing the previous state into place, breaking users who rely on what was introduced as part of open-telemetry/opentelemetry-collector-contrib#33671. (open-telemetry/opentelemetry-collector-contrib#34085)

💡 Enhancements 💡

• xconfighttp: Add WithOtelHTTPOptions to experimental module xconfighttp (open-telemetry/opentelemetry-collector#11770)
• pkg/ottl: GetXML Converter now supports selecting text, CDATA, and attribute (value) content. (open-telemetry/opentelemetry-collector-contrib#36821)
• pkg/pdatatest: Add support for Profiles signal comparison. (open-telemetry/opentelemetry-collector-contrib#36232)
• testbed: Add batcher performance tests (open-telemetry/opentelemetry-collector-contrib#36206)
• testbed: add options for retry/storage for filelog sender (open-telemetry/opentelemetry-collector-contrib#36781)

🧰 Bug fixes 🧰

• exporterhelper: Fix memory leak at exporter shutdown (open-telemetry/opentelemetry-collector#11401)
• sharedcomponent: Remove race-condition and cleanup locking (open-telemetry/opentelemetry-collector#11819)
• receiver/prometheusreceiver: Metric adjuster no longer assumes that all metrics from a scrape come from the same resource (open-telemetry/opentelemetry-collector-contrib#36477)
• parseutils: Handle escaped quotes when parsing pairs using SplitString. (open-telemetry/opentelemetry-collector-contrib#36176)
• jaegerreceiver: Remove ineffectual warning from jaegerreceiver (open-telemetry/opentelemetry-collector-contrib#35894)

---

v0.20.0

This release includes version 0.115.0 of the upstream Collector components.

The individual upstream Collector changelogs can be found here:

v0.115.0:

• https://github.com/open-telemetry/opentelemetry-collector/releases/tag/v0.115.0
• https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.115.0

Highlights from the upstream Collector changelog

🛑 Breaking changes 🛑

• otelcol: Change all logged timestamps to ISO8601. (#10543)
  This makes log timestamps human-readable (as opposed to epoch seconds in
  scientific notation), but may break users trying to parse logged lines in the
  old format.
• k8sattributesprocessor: Move k8sattr.fieldExtractConfigRegex.disallow feature gate to Beta. (#25128)
  Disable the k8sattr.fieldExtractConfigRegex.disallow feature gate to get the old behavior.

💡 Enhancements 💡

• statsdreceiver: Adapt statsd receiver example config to remove filtering of histogram metrics (#385)
• tailsamplingprocessor: Adds decision cache for non-sampled trace IDs (#31583)

🧰 Bug fixes 🧰

• service: ensure OTLP emitted logs respect severity (#11718)
• processor/k8sattribute: fixes parsing of k8s image names to support images with tags and digests. (#36131)

---

Dynatrace distribution changelog:

💡 Enhancements 💡

• statsdreceiver: Adapt statsd receiver example config to remove filtering of histogram metrics (#385)

v0.19.0

This release includes version 0.114.0 of the upstream Collector components.

The individual upstream Collector changelogs can be found here:

v0.114.0:

• https://github.com/open-telemetry/opentelemetry-collector/releases/tag/v0.114.0
• https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.114.0

Highlights from the upstream Collector changelog

🛑 Breaking changes 🛑

• exporter: Remove deprecated funcs Create[*]Exporter and [*]ExporterStability (open-telemetry/opentelemetry-collector#11662)
• extension: Remove deprecated funcs CreateExtension and ExtensionStability (open-telemetry/opentelemetry-collector#11663)
• pkg/stanza: Changed signature of emit.Callback function in pkg/stanza/fileconsumer/emit package by introducing emit.Token struct that encapsulates the token's body and attributes. (open-telemetry/opentelemetry-collector-contrib#36260)

💡 Enhancements 💡

• cmd/builder: Allow for replacing of local Providers and Converters when building custom collector with ocb. (open-telemetry/opentelemetry-collector#11649)

• cmd/builder: Allow configuring confmap.Converter components in ocb. (open-telemetry/opentelemetry-collector#11582)

• all: shorten time period before removing an unmaintained component from 6 months to 3 months (open-telemetry/opentelemetry-collector#11664)

• k8sattributesprocessor: Add support for profiles signal (open-telemetry/opentelemetry-collector-contrib#35983)

• resourcedetectionprocessor: Introduce support for Profiles signal type. (open-telemetry/opentelemetry-collector-contrib#35980)

🧰 Bug fixes 🧰

• pkg/stanza: Ensure that time parsing happens before entry is sent to downstream operators (open-telemetry/opentelemetry-collector-contrib#36213)
• pkg/stanza: Synchronous handling of entries passed from the log emitter to the receiver adapter (open-telemetry/opentelemetry-collector-contrib#35453)
• processor/k8sattributes: Block when starting until the metadata have been synced, to fix that some data couldn't be associated with metadata when the agent was just started. (open-telemetry/opentelemetry-collector-contrib#32556)
• pkg/ottl: Respect the depth option when flattening slices using flatten (open-telemetry/opentelemetry-collector-contrib#36161)
  The depth option is also now required to be at least 1.

v0.18.0

This release includes version 0.113.0 of the upstream Collector components.

The individual upstream Collector changelogs can be found here:

v0.113.0:

• https://github.com/open-telemetry/opentelemetry-collector/releases/tag/v0.113.0
• https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.113.0

Highlights from the upstream Collector changelog

🛑 Breaking changes 🛑

• internal/fanoutconsumer: Extract internal/fanoutconsumer as a separate go module (open-telemetry/opentelemetry-collector#11441)

• builder: Remove builder support to build old version, and the otelcol_version config (open-telemetry/opentelemetry-collector#11405)
  User should remove this property from their config, to build older versions use older builders.

• receiver: Make receivertest into its own module (open-telemetry/opentelemetry-collector#11462)

• builder: Remove deprecated flags from Builder (open-telemetry/opentelemetry-collector#11576)
  Here is the list of flags | --name, --description, --version, --otelcol-version, --go, --module

• internal/sharedcomponent: Extract internal/sharedcomponent as a separate go module (open-telemetry/opentelemetry-collector#11442)

• pkg/ottl: Promote processor.transform.ConvertBetweenSumAndGaugeMetricContext feature gate to Stable (open-telemetry/opentelemetry-collector-contrib#36216)
  This gate can no longer be disabled. The convert_sum_to_gauge and convert_gauge_to_sum may now only be used with the metric context.

• hostmetrics: Adjust scraper creation to make it so the scraper name is reported with hostmetrics scraper errors. (open-telemetry/opentelemetry-collector-contrib#35814)

• pkg/ottl: Add SliceToMap function (open-telemetry/opentelemetry-collector-contrib#35256)

💡 Enhancements 💡

• mdatagen: Add otlp as supported distribution (open-telemetry/opentelemetry-collector#11527)

• batchprocessor: Move single shard batcher creation to the constructor (open-telemetry/opentelemetry-collector#11594)

• service: add support for using the otelzap bridge and emit logs using the OTel Go SDK (open-telemetry/opentelemetry-collector#10544)

• hostmetricsreceiver: Add the system.uptime metric in the hostmetrics receiver (open-telemetry/opentelemetry-collector-contrib#31627)
  This metric is provided by the new system scraper.

🧰 Bug fixes 🧰

• service: ensure traces and logs emitted by the otel go SDK use the same resource information (open-telemetry/opentelemetry-collector#11578)

• config/configgrpc: Patch for bug in the grpc-go NewClient that makes the way the hostname is resolved incompatible with the way proxy setting are applied. (open-telemetry/opentelemetry-collector#11537)

• builder: Update builder default providers to lastest stable releases (open-telemetry/opentelemetry-collector#11566)

• pkg/stanza: Fixed bug causing Operators with DropOnErrorQuiet to send log entries to the next operator. (open-telemetry/opentelemetry-collector-contrib#35010)
  This issue was introduced by a bug fix meant to ensure Silent Operators are not logging errors (open-telemetry/opentelemetry-collector-contrib#35010). With this fix,
  this side effect bug has been resolved.

• receiver/filelog: fix record counting with header (open-telemetry/opentelemetry-collector-contrib#35869)

• pkg/stanza/operator: Retain Operator should propagate the severity field (open-telemetry/opentelemetry-collector-contrib#35832)
  The retain operator should propagate the severity field like it does with timestamps.

• pkg/stanza: Handle error of callback function of ParserOperator.ProcessWithCallback (open-telemetry/opentelemetry-collector-contrib#35769)
  ProcessWithCallback of ParserOperator first calls the ParseWith method
  which properly handles errors with HandleEntryError.
  Then the callback function is called and its returned error should also
  be handled by the HandleEntryError ensuring a consistent experience.

---

Dynatrace distribution changelog:

💡 Enhancements 💡

• transformprocessor: Extend the user data filtering example with a statement for masking the client.address attribute. (#356)
• transformprocessor: Extend the credit card and IBAN filtering example with log body filtering (#357)
• docs: Add a note about k8s enrichment of collector internal telemetry (#364)

v0.17.0

This release includes version 0.112.0 of the upstream Collector components.

The individual upstream Collector changelogs can be found here:

v0.112.0:

• https://github.com/open-telemetry/opentelemetry-collector/releases/tag/v0.112.0
• https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.112.0

Highlights from the upstream Collector changelog

💡 Enhancements 💡

• pkg/ottl: Add ConvertAttributesToElementsXML Converter (open-telemetry/opentelemetry-collector-contrib#35328)
• pkg/ottl: Parsing invalid statements and conditions now prints all errors instead of just the first one found. (open-telemetry/opentelemetry-collector-contrib#35728)
• pkg/ottl: Add ParseSimplifiedXML Converter (open-telemetry/opentelemetry-collector-contrib#35421)
• pkg/ottl: Add ConvertTextToElements Converter (open-telemetry/opentelemetry-collector-contrib#35364)

🧰 Bug fixes 🧰

• filelogreceiver: Supports add_metadata_from_filepath for Windows filepaths (open-telemetry/opentelemetry-collector-contrib#35558)
• filelogreceiver: Suppress errors on EBADF when unlocking files. (open-telemetry/opentelemetry-collector-contrib#35706)
  This error is harmless and happens regularly when delete_after_read is set. This is because we acquire the lock right at the start of the ReadToEnd function and then defer the unlock, but that function also performs the delete. So, by the time it returns and the defer runs the file descriptor is no longer valid.
• hostmetricsreceiver: Fix duplicate filesystem metrics (open-telemetry/opentelemetry-collector-contrib#34635, open-telemetry/opentelemetry-collector-contrib#34512)
  The hostmetrics exposes duplicate metrics of identical mounts exposed in namespaces. The duplication causes errors in exporters that are sensitive to duplicate metrics. We can safely drop the duplicates as the metrics should be exactly the same.

---

Dynatrace distribution changelog:

💡 Enhancements 💡

• redactionprocessor: Add example config for redacting credit card numbers. (#337)
• transformprocessor: Add example for DT API Token filtering using the redaction and transform processor. (#346)
• transformprocessor: Introduce masking example of credit card numbers. (#340)
• transformprocessor: Introduce masking and redaction example of international IBANs. (#343)
• transformprocessor: Add config example for redacting user related data with transform processor (#342)

🧰 Bug fixes 🧰

• installer: Move the documentation key in the linux service file to the correct section (#334)

v0.16.0

This release includes version 0.111.0 of the upstream Collector components.

The individual upstream Collector changelogs can be found here:

v0.111.0:

• https://github.com/open-telemetry/opentelemetry-collector/releases/tag/v0.111.0
• https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.111.0

Highlights from the upstream Collector changelog

🛑 Breaking changes 🛑

• service/telemetry: Change default metrics address to "localhost:8888" instead of ":8888" (#11251)
  This behavior can be disabled by disabling the feature gate 'telemetry.UseLocalHostAsDefaultMetricsAddress'.
• config: Move component.UseLocalHostAsDefaultHost feature gate to stable and therefore remove the ability to disable it. (#35569)

🚩 Deprecations 🚩

• service/telemetry: Deprecate service::telemetry::metrics::address in favor of service::telemetry::metrics::readers. (#11205)
• processorhelper: Deprecate BuildProcessorMetricName as it's no longer needed since introduction of mdatagen (#11328)

💡 Enhancements 💡

• confighttp: Snappy compression to lazy read for memory efficiency (#11177)
• httpsprovider: Mark the httpsprovider as stable. (#11191)
• httpprovider: Mark the httpprovider as stable. (#11191)
• yamlprovider: Mark the yamlprovider as stable. (#11192)
• confmap: Allow using any YAML structure as a string when loading configuration including time.Time formats (#10659)
  Previously, fields with time.Time formats could not be used as strings in configurations
• receiver/statsd: Add support for aggregating on Host/IP.
  (#23809)
• hostmetricsreceiver: Add ability to mute all errors (mainly due to access rights) coming from process scraper of the hostmetricsreceiver (#20435)
• pkg/ottl: Add InsertXML Converter (#35436)
• pkg/ottl: Add GetXML Converter (#35462)
• pkg/ottl: Add ToKeyValueString Converter (#35334)
• pkg/ottl: Add RemoveXML Converter (#35301)

🧰 Bug fixes 🧰

• processorhelper: Fix data race condition, concurrent writes to the err variable, causes UB (Undefined Behavior) (#11350)
• cmd/builder: re-adds function to properly set and view version number of OpenTelemetry Collector Builder (ocb) binaries (#11208)
• pdata: Unmarshal Span and SpanLink flags from JSON (#11267)

v0.15.0

This release includes version 0.110.0 of the upstream Collector components.

The individual upstream Collector changelogs can be found here:

v0.110.0:

• https://github.com/open-telemetry/opentelemetry-collector/releases/tag/v0.110.0
• https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.110.0

Highlights from the upstream Collector changelog

🛑 Breaking changes 🛑

• processorhelper: Update incoming/outgoing metrics to a single metric with a otel.signal attributes. (#11144)
  The following metrics were added in the previous version

  • otelcol_processor_incoming_spans
  • otelcol_processor_outgoing_spans
  • otelcol_processor_incoming_metric_points
  • otelcol_processor_outgoing_metric_points
  • otelcol_processor_incoming_log_records
  • otelcol_processor_outgoing_log_records

  They are being replaced with the following to more closely align with OTEP 259:

  • otelcol_processor_incoming_items
  • otelcol_processor_outgoing_items

• processorhelper: Remove deprecated [Traces|Metrics|Logs]Inserted funcs (#11151)

• config: Mark UseLocalHostAsDefaultHostfeatureGate as stable (#11235)

• pkg/stanza: Move filelog.container.removeOriginalTimeField feature gate to beta (#33389)

  • Disable the filelog.container.removeOriginalTimeField feature gate to get the old behavior.

• resourcedetectionprocessor: Move processor.resourcedetection.hostCPUSteppingAsString feature gate to stable. (#31136)

• resourcedetectionprocessor: Remove processor.resourcedetection.hostCPUModelAndFamilyAsString feature gate. (#29025)

🚩 Deprecations 🚩

• processorhelper: deprecate accepted/refused/dropped metrics (#11201)
  The following metrics are being deprecated as they were only used in a single
  processor:
  • otelcol_processor_accepted_log_records
  • otelcol_processor_accepted_metric_points
  • otelcol_processor_accepted_spans
  • otelcol_processor_dropped_log_records
  • otelcol_processor_dropped_metric_points
  • otelcol_processor_dropped_spans
  • otelcol_processor_refused_log_records
  • otelcol_processor_refused_metric_points
  • otelcol_processor_refused_spans
• hostmetricsreceiver: Set the receiver.hostmetrics.normalizeProcessCPUUtilization feature gate to stable. (#34763)

💡 Enhancements 💡

• mdatagen: Add stability field to telemetry metrics, allowing the generated description to include a stability string. (#11160)
• confmap/provider/envprovider: Support default values when env var is empty (#5228)
• service/telemetry: Mark useOtelWithSDKConfigurationForInternalTelemetry as stable (#7532)
• mdatagen: mdatagen validateMetrics() support validate metrics in telemetry.metric (#10925)
• mdatagen: Use cobra for the command, add version flag (#11196)
• processor/transform: Add custom function to the transform processor to convert exponential histograms to explicit histograms. (#33827)
• pkg/ottl: Improved JSON unmarshaling performance by 10-20% by switching dependencies. (#35130)
• pkg/ottl: Added support for locale in the Time converter (#32978)
• transformprocessor: Remove unnecessary data copy when transform sum to/from gauge (#35177)
• tailsamplingprocessor: Fix the behavior for numeric tag filters with inverse_match set to true. (#34296)

🧰 Bug fixes 🧰

• service: Ensure process telemetry is registered when internal telemetry is configured with readers instead of an address. (#11093)
• mdatagen: Fix incorrect generation of metric tests with boolean attributes. (#11169)
• otelcol: Fix the Windows Event Log configuration when running the Collector as a Windows service. (#5297, #11051)
• confmap: Fix loading config of a component from a different source. (#11154)
  This issue only affected loading the whole component config, loading parts of a component config from a different source was working correctly.
• pkg/stanza: Do not get formatted message for Windows events without an event provider. (#35135)
  Attempting to get the formatted message for Windows events without an event provider can result in an error being logged. |
  This change ensures that the formatted message is not retrieved for such events.
• prometheusreceiver: Fix the retrieval of scrape configurations by also considering scrape config files (#34786)
• redactionprocessor: Fix panic when using the redaction processor in a logs pipeline (#35331)

v0.14.0

This release includes version 0.109.0 of the upstream Collector components.

The individual upstream Collector changelogs can be found here:

v0.109.0:

• https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.109.0

Highlights from the upstream Collector changelog

🛑 Breaking changes 🛑

• spanmetricsconnector: Improve consistency between metrics generated by spanmetricsconnector. Added traces.span.metrics as default namespace (#33227, #32818)
  Default namespace for the generated metrics is traces.span.metrics now. | The deprecated metrics are: calls, duration and events. | The feature flag connector.spanmetrics.legacyLatencyMetricNames was added to revert the behavior.
• pkg/ottl: Remove tracing from OTTL due to performance concerns (#34910)

💡 Enhancements 💡

• pkg/ottl: Added Decode() converter function (#32493)
• pkg/ottl: Add Sort function to sort array to ascending order or descending order (#34200)
• transformprocessor: Support aggregating metrics based on their attribute values and substituting the values with a new value. (#16224)
• redactionprocessor: Add support for logs and metrics (#34479)

🧰 Bug fixes 🧰

• hostmetricsreceiver: In filesystem scraper, do not prefix partitions when using the environment variable HOST_PROC_MOUNTINFO (#35043)

💡 Enhancements 💡

• eecprovider: Add informational headers to EEC provider requests (#280)
• docs: Added Dynatrace dashboards that can be used to inspect the collectors internal telemetry (#274)

v0.13.0

This release includes version 0.108.0/0.108.1 of the upstream Collector components.

The individual upstream Collector changelogs can be found here:

v0.108.0:

• https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.108.0

v0.108.1:

• https://github.com/open-telemetry/opentelemetry-collector/releases/tag/v0.108.1

Highlights from the upstream Collector changelog

🛑 Breaking changes 🛑

• all: Added support for go1.23, bumped the minimum version to 1.22 (open-telemetry/opentelemetry-collector#10869)
• otelcol: Remove deprecated ConfmapProvider interface. (open-telemetry/opentelemetry-collector#10934)
• confmap: Mark confmap.strictlyTypedInput as stable (open-telemetry/opentelemetry-collector#10552)
• all: Added support for go1.23, bumped the minimum version to 1.22 (open-telemetry/opentelemetry-collector-contrib#34658)
• transformprocessor: Promote processor.transform.ConvertBetweenSumAndGaugeMetricContext feature flag from alpha to beta (open-telemetry/opentelemetry-collector-contrib#34567)

💡 Enhancements 💡

• exporter/otlp: Add batching option to otlp exporter (open-telemetry/opentelemetry-collector#8122)
• builder: Add a --skip-new-go-module flag to skip creating a module in the output directory. (open-telemetry/opentelemetry-collector#9252)
• component: Add TelemetrySettings.LeveledMeterProvider func to replace MetricsLevel in the near future (open-telemetry/opentelemetry-collector#10931)
• mdatagen: Add LeveledMeter method to mdatagen (open-telemetry/opentelemetry-collector#10933)
• service: Adds level configuration option to service::telemetry::trace to allow users to disable the default TracerProvider (open-telemetry/opentelemetry-collector#10892)
  This replaces the feature gate service.noopTracerProvider introduced in v0.107.0
• componentstatus: Add new Reporter interface to define how to report a status via a component.Host implementation (open-telemetry/opentelemetry-collector#10852)
• mdatagen: support using a different github project in mdatagen README issues list (open-telemetry/opentelemetry-collector#10484)
• mdatagen: Updates mdatagen's usage to output a complete command line example, including the metadata.yaml file. (open-telemetry/opentelemetry-collector#10886)
• extension: Add ModuleInfo to extension.Settings to allow extensions to access component go module information. (open-telemetry/opentelemetry-collector#10876)
• confmap: Mark module as stable (open-telemetry/opentelemetry-collector#9379)
• deltatocumulative: Promote to alpha stability (open-telemetry/opentelemetry-collector-contrib#34747)
  promotes the deltatocumulative processor to alpha stability, as most features are now implemented and ready for wider testing.
• deltatocumulative: explicit-bounds histograms (open-telemetry/opentelemetry-collector-contrib#30705)
  implements aggregation of explicit-bounds (traditional) histograms.
• filelogreceiver: If acquire_fs_lock is true, attempt to acquire a shared lock before reading a file. (open-telemetry/opentelemetry-collector-contrib#34801)
  Unix only. If a lock cannot be acquired then the file will be ignored until the next poll cycle.
• prometheusreceiver: Ensure Target Allocator's confighttp is used in the receiver's service discovery (open-telemetry/opentelemetry-collector-contrib#33370)
• metricstransformprocessor: Add scaling exponential histogram support (open-telemetry/opentelemetry-collector-contrib#29803)
• pkg/ottl: Introduce UserAgent converter to parse UserAgent strings (open-telemetry/opentelemetry-collector-contrib#32434)

🧰 Bug fixes 🧰

• batchprocessor: Update units for internal telemetry (open-telemetry/opentelemetry-collector#10652)

• confmap: Fix bug where an unset env var used with a non-string field resulted in a panic (open-telemetry/opentelemetry-collector#10950)

• service: Fix memory leaks during service package shutdown (open-telemetry/opentelemetry-collector#9165)

• mdatagen: Update generated telemetry template to only include context import when there are async metrics. (open-telemetry/opentelemetry-collector#10883)

• mdatagen: Fixed bug in which setting SkipLifecycle & SkipShutdown to true would result in a generated file with an unused import confmaptest (open-telemetry/opentelemetry-collector#10866)

• confmap: Use string representation for field types where all primitive types are strings. (open-telemetry/opentelemetry-collector#10937)

• otelcol: Preserve internal representation when unmarshaling component configs (open-telemetry/opentelemetry-collector#10552)

• tailsamplingprocessor: Update the policy value in metrics dimension value to be unique across multiple tail sampling components with the same policy name. (open-telemetry/opentelemetry-collector-contrib#34192)
  This change ensures that the policy value in the metrics exported by the tail sampling processor is unique across multiple tail sampling processors with the same policy name.

• prometheusreceiver: Group scraped metrics into resources created from job and instance label pairs (open-telemetry/opentelemetry-collector-contrib#34237)
  The receiver will now create a resource for each distinct job/instance label combination.
  In addition to the label/instance pairs detected from the scraped metrics, a resource representing the overall
  scrape configuration will be created. This additional resource will contain the scrape metrics, such as the number of scraped metrics, the scrape duration, etc.

• tailsamplingprocessor: Fix the behavior for numeric tag filters with inverse_match set to true. (open-telemetry/opentelemetry-collector-contrib#34296)

• pkg/stanza: fix nil value conversion (open-telemetry/opentelemetry-collector-contrib#34672)

🚀 New components 🚀

• redactionprocessor: Added the redaction processor to the Dynatrace collector distro. (#275)

v0.12.0

This release includes version 0.107.0 of the upstream Collector components.

The individual upstream Collector changelogs can be found here:

v0.107.0:

• https://github.com/open-telemetry/opentelemetry-collector/releases/tag/v0.107.0
• https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.107.0

Highlights from the upstream Collector changelog

🛑 Breaking changes 🛑

• confmap: Set the confmap.unifyEnvVarExpansion feature gate to Stable. Expansion of $FOO env vars is no longer supported. Use ${FOO} or ${env:FOO} instead. (open-telemetry/opentelemetry-collector#10508)
• filelogreceiver: Check for unsupported fractional seconds directive when converting strptime time layout to native format (open-telemetry/opentelemetry-collector-contrib#34390)
• fluentforwardreceiver: Update the scope name for telemetry produced by the fluentforwardreceiver from otelcol/fluentforwardreceiver to github.com/open-telemetry/opentelemetry-collector-contrib/receiver/fluentforwardreceiver (open-telemetry/opentelemetry-collector-contrib#34534)
• hostmetricsreceiver: Update the scope name for telemetry produced by the hostmetrics receiver's scrapers from otelcol/hostmetricsreceiver/* to github.com/open-telemetry/opentelemetry-collector-contrib/receiver/hostmetricsreceiver/internal/scraper/* (open-telemetry/opentelemetry-collector-contrib#34526)
• prometheusreceiver: Update the scope name for telemetry produced by the prometheusreceiver from otelcol/prometheusreceiver to `github.com/open-telemetry/opentelemetry-collector-contrib/receiver/prometheusreceiver (open-telemetry/opentelemetry-collector-contrib#34589)
• statsdreceiver: Update the scope name for telemetry produced by the statsdreceiver from otelcol/statsdreceiver to github.com/open-telemetry/opentelemetry-collector-contrib/receiver/statsdreceiver (open-telemetry/opentelemetry-collector-contrib#34547)
• k8sattributesprocessor: Update the scope name for telemetry produced by the k8sattributesprocessor from otelcol/k8sattributes to github.com/open-telemetry/opentelemetry-collector-contrib/processor/k8sattributesprocessor (open-telemetry/opentelemetry-collector-contrib#34550)
• filterprocessor: Update the scope name for telemetry produced by the filterprocessor from otelcol/filter to github.com/open-telemetry/opentelemetry-collector-contrib/processor/filterprocessor (open-telemetry/opentelemetry-collector-contrib#34550)
• probabilisticsamplerprocessor: Update the scope name for telemetry produced by the probabilisticsamplerprocessor from otelcol/probabilisticsampler to github.com/open-telemetry/opentelemetry-collector-contrib/processor/probabilisticsamplerprocessor (open-telemetry/opentelemetry-collector-contrib#34550)
• tailsamplingprocessor: Update the scope name for telemetry produced by the tailsamplingprocessor from otelcol/tailsampling to github.com/open-telemetry/opentelemetry-collector-contrib/processor/tailsamplingprocessor (open-telemetry/opentelemetry-collector-contrib#34550)

💡 Enhancements 💡

• confmap: Allow using any YAML structure as a string when loading configuration. (open-telemetry/opentelemetry-collector#10800)
  Previous to this change, slices could not be used as strings in configuration.
• semconv: Add v1.26.0 semantic conventions package (open-telemetry/opentelemetry-collector#10249, open-telemetry/opentelemetry-collector#10829)
• semconv: Add semantic conventions version v1.27.0 (open-telemetry/opentelemetry-collector#10837)
• hostmetricsreceiver: add reporting interval to entity event (open-telemetry/opentelemetry-collector-contrib#34240)
• processor/k8sattributes: Add support for container.image.repo_digests metadata (open-telemetry/opentelemetry-collector-contrib#34029)

🧰 Bug fixes 🧰

• configtelemetry: Add 10s read header timeout on the configtelemetry Prometheus HTTP server. (open-telemetry/opentelemetry-collector#5699)

• service: Allow users to disable the tracer provider via the feature gate service.noopTracerProvider (open-telemetry/opentelemetry-collector#10858)
  The service is returning an instance of a SDK tracer provider regardless of whether there were any processors configured causing resources to be consumed unnecessarily.

• processorhelper: Fix processor metrics not being reported initially with 0 values. (open-telemetry/opentelemetry-collector#10855)

• service: Implement the temporality_preference setting for internal telemetry exported via OTLP (open-telemetry/opentelemetry-collector#10745)

• configauth: Fix unmarshaling of authentication in HTTP servers. (open-telemetry/opentelemetry-collector#10750)

• confmap: If loading an invalid YAML string through a provider, use it verbatim instead of erroring out. (open-telemetry/opentelemetry-collector#10759)
  This makes the ${env:ENV} syntax closer to how ${ENV} worked before unifying syntaxes.

• component: Allow component names of up to 1024 characters in length. (open-telemetry/opentelemetry-collector#10816)

• confmap: Remove original string representation if invalid. (open-telemetry/opentelemetry-collector#10787)

🧰 Bug fixes 🧰

• release: Add missing dependency to /bin/sh to the RPM linux package (#264)