1.9.0

Configuration

Enhancements

• Change ingestion URL templates by replacing signalfx.com
  endpoints with observability.splunkcloud.com.
  #378

Behaviors

Breaking changes

• Changed selection algorithm for snapshot profiling.
  #381

1.8.0

Configuration

Breaking changes

• Remove definitions for Real User Monitoring.
  #344

Enhancements

• Add experimental configuration definition for snapshot profiling.
  #353,
  #358,
  #368
• Add experimental definition for Splunk specific fields for file
  based configuration.
  #355

Repository

Enhancements

• Define where to store deployment repositories.
  #345

Bugfixes

• Fix link to Splunk documentation in CONTRIBUTING.md template.
  #346
• Fix information how to contribute to documentation in
  CONTRIBUTING.md template.
  #347

Behaviors

Enhancements

• Add experimental definitions for context propagation between
  Splunk and AppD agents.
  #335,
  #338
• Describe Trace Snapshot Profiling.
  #362

Semantic Conventions

Enhancements

• Define the profiling.instrumentation.source attribute with valid values
  of continuous and snapshot.
  #362

1.7.0

Configuration

Enhancements

• SPLUNK_PROFILER_CALL_STACK_INTERVAL defaults to 1000 for single-threaded runtimes.
  #325

Repository

Enhancements

• Clarify the default sampling algorithm.
  #284
• Require a CLA Assistant GitHub workflow.
  #269
• Update the CLA notice in CONTRIBUTING.md template.
  #269
  #274
• Add Renovate as an acceptable alternative to Dependabot.
  #271
• Add disk buffering configuration options for RUM mobile instrumentation libraries.
  #275
• Update telemetry resource attributes
  #277:
  • Deprecate splunk.distro.version,
  • Change telemetry.auto.version to telemetry.distro.version,
  • Add telemetry.distro.name resource attribute.
• Relax name restrictions to include Cisco/AppDynamics.
  #308

Semantic Conventions

Enhancements

• Deprecate text format for profiling.data.format.
  #285

What's Changed

• Update GA request template after release by @pellared in #259
• GA requests references 1.6.0 by @Kielek in #258
• Update RELEASING.md by @breedx-splk in #260
• Bump DavidAnson/markdownlint-cli2-action from 12.0.0 to 13.0.0 by @dependabot in #261
• Bump actions/checkout from 4.0.0 to 4.1.0 by @dependabot in #262
• Fix link after moving sem-conv to own repository by @Kielek in #266
• Add CLA Assistant GitHub workflow by @pellared in #268
• Require CLA Assistant GitHub workflow by @pellared in #269
• Update cla.yml permissions by @pellared in #270
• Add renovatebot as a dependency management option by @breedx-splk in #271
• Fix CLA Assistant for dependabot by @pellared in #272
• Bump actions/checkout from 4.1.0 to 4.1.1 by @dependabot in #273
• Update CLA notice in CONTRIBUTING.md by @pellared in #274
• Add disk buffering config options to RUM conf by @mhennoch in #275
• Update telemetry resource attributes by @Kielek in #277
• Bump DavidAnson/markdownlint-cli2-action from 13.0.0 to 14.0.0 by @dependabot in #282
• Deprecate text format for profiling.data.format by @Kielek in #285
• Bump lycheeverse/lychee-action from 1.8.0 to 1.9.0 by @dependabot in #286
• Bump lycheeverse/lychee-action from 1.9.0 to 1.9.1 by @dependabot in #287
• Create lychee GH issues only when action is failing by @Kielek in #289
• Bump DavidAnson/markdownlint-cli2-action from 14.0.0 to 15.0.0 by @dependabot in #290
• Bump peter-evans/create-issue-from-file from 4.0.1 to 5.0.0 by @dependabot in #291
• Bump lycheeverse/lychee-action from 1.9.1 to 1.9.2 by @dependabot in #292
• Bump lycheeverse/lychee-action from 1.9.2 to 1.9.3 by @dependabot in #293
• Bump actions/checkout from 4.1.1 to 4.1.2 by @dependabot in #294
• Bump cla-assistant/github-action from 2.3.1 to 2.3.2 by @dependabot in #295
• Bump DavidAnson/markdownlint-cli2-action from 15.0.0 to 16.0.0 by @dependabot in #296
• Fix CLA GitHub Action after GH org rename by @pellared in #297
• Bump actions/checkout from 4.1.2 to 4.1.3 by @dependabot in #298
• Bump actions/checkout from 4.1.3 to 4.1.4 by @dependabot in #299
• Bump lycheeverse/lychee-action from 1.9.3 to 1.10.0 by @dependabot in #300
• Bump actions/checkout from 4.1.4 to 4.1.5 by @dependabot in #302
• Bump contributor-assistant/github-action from 2.3.2 to 2.4.0 by @dependabot in #301
• Bump actions/checkout from 4.1.5 to 4.1.6 by @dependabot in #303
• Bump actions/checkout from 4.1.6 to 4.1.7 by @dependabot in #304
• Bump contributor-assistant/github-action from 2.4.0 to 2.5.0 by @dependabot in #305
• Bump contributor-assistant/github-action from 2.5.0 to 2.5.1 by @dependabot in #306
• Bump DavidAnson/markdownlint-cli2-action from 16.0.0 to 17.0.0 by @dependabot in #307
• Relax repo name restrictions and include Cisco/AppD by @breedx-splk in #308
• Bump contributor-assistant/github-action from 2.5.1 to 2.5.2 by @dependabot in #309
• Bump contributor-assistant/github-action from 2.5.2 to 2.6.0 by @dependabot in #310
• Bump peter-evans/create-issue-from-file from 5.0.0 to 5.0.1 by @dependabot in #311
• Bump actions/checkout from 4.1.7 to 4.2.0 by @dependabot in #312
• Bump contributor-assistant/github-action from 2.6.0 to 2.6.1 by @dependabot in #313
• Bump actions/checkout from 4.2.0 to 4.2.1 by @dependabot in #314
• Bump lycheeverse/lychee-action from 1.10.0 to 2.0.0 by @dependabot in #315
• Bump lycheeverse/lychee-action from 2.0.0 to 2.0.2 by @dependabot in #317
• Fix default value explanation for SPLUNK_PROFILER_LOGS_ENDPOINT by @seemk in #318
• Bump actions/checkout from 4.2.1 to 4.2.2 by @dependabot in #319
• Bump lycheeverse/lychee-action from 2.0.2 to 2.1.0 by @dependabot in #320
• Bump DavidAnson/markdownlint-cli2-action from 17.0.0 to 18.0.0 by @dependabot in #321
• Remove semantic convention from Call Stack Span Association by @pellared in #324
• Update SPLUNK_PROFILER_CALL_STACK_INTERVAL default by @pellared in #325
• Clarify default sampler by @seemk in #284
• Refactor versioning docs by @pellared in #328
• Bump lycheeverse/lychee-action from 2.1.0 to 2.2.0 by @dependabot in #330
• Bump DavidAnson/markdownlint-cli2-action from 18.0.0 to 19.0.0 by @dependabot in #331
• Release 1.7.0 by @pellared in #329

New Contributors

• @mhennoch made their first contribution in #275

Full Changelog: v1.6.0...v1.7.0

1.6.0

Configuration

Enhancements

• Update the log message when service.name resource attribute is not set.

Repository

Enhancements

• Update CONTRIBUTING.md template to require signing commits.
• Suggest changelog sub-sections and labels.
• Require releases to contain a link to the upstream release notes.
• Add repiository permission exception for bot accounts.
• Remove signalfx/gdi-specification-* teams from permissions.
• Add admins team.

Release v1.5.0

Configuration

Bugfixes

• Remove SPLUNK_METRICS_ENDPOINT from Instrumentation Libraries
  (it was never really stable).

Enhancements

• Add SPLUNK_PROFILER_MEMORY_ENABLED.
• Deprecate jaeger-thrift-splunk option for OTEL_TRACES_EXPORTER.
• Remove the policy regarding Zipkin exporter.
• OTLP exporter can use either grpc or http/protobuf
  as the default transport protocol.

Repository

Enhancements

• Add tag protection rule requirement.
• Add Dependabot security configuration requirements.
• Grant Admin role for maintainers team.
• Allow using the documentation public repository
  and reference it in the CONTRIBUTING.md template.
• Require documenting all configuration parameters
  that are relevant to Splunk Observability Cloud.
• Require documenting all configuration parameters
  whose default or accepted values deviate from upstream.

Semantic Conventions

Breaking Changes

• Remove telemetry.sdk.language attribute from ResourceLogs.resource.

Bugfixes

• Remove redunant and conflicting statement about file and line for ResourceLogs.

Enhancements

• Recommened adding container.id, host.id, process.pid attributes
  to ResourceLogs.resource.
• Recommend setting process resource attributes.
• Recommend collecting runtime environment metrics.
• Add a required profiling.data.total.frame.count attribute to LogRecord for pprof-gzip-base64.
• Relax the meaning of allocation in LogRecord for pprof-gzip-base64.

Release v1.4.0

Configuration

• The RUM configuration is now stable.

Semantic Conventions

Breaking Changes

• Remove namespace field from profiling stack-trace lines and incorporate it to the function
  field.
• Remove line and column ranges in profiling stack-trace lines.

Bugfixes

• Clarify that there are two metadata lines (thread metadata and thread state),
  both of which can be left empty, containing only the newline.

Enhancements

• Add a required telemetry.sdk.language attribute to ResourceLogs.resource.
• Allow : characters in file names.
• Clarify source.event.period unit is milliseconds.

Release v1.3.0

General

• Add support information into versioning specification.
• Add behaviors specification.
• Refactor profiling into existing specification structure.

Bug fixes

• Replaced the example for Java system properties in specification/configuration.md.
• Increase profiling rate from 1s to 10s.

Configuration

Breaking Changes

• Change the Kubernetes package management solutions configuration option default for splunkPlatform.metricsEnabled to be false.

Enhancements

• Add SPLUNK_REALM to required environment variables that need to be supported by instrumentation libraries.
• Add SPLUNK_PROFILER* environment variables (SPLUNK_PROFILER_CALL_STACK_INTERVAL, SPLUNK_PROFILER_ENABLED, SPLUNK_PROFILER_LOGS_ENDPOINT) to the required configuration for instrumentation libraries.
• Add OTEL_TRACES_EXPORTER to required environment variables that need to be supported by serverless instrumentation libraries.

Semantic Conventions

Breaking Changes

• Use os.name instead of os.type for mobile RUM libraries.

Bugfixes

• Correct stability guarantee of the RUM section as experimental.

Enhancements

• Add experimental profiling semantic conventions.

Release v1.2.0

General

Bug fixes

• Properly use the terms "component" and "GDI repository".

Configuration

Enhancements

• Add experimental specification for the configuration for Kubernetes package
  management solutions.

Bug fixes

• Properly specify configuration statuses for RUM and serverless. These
  sections of the configuration specification are not stable and are correctly
  identified as such now.
• Clarify requirement for RUM beaconEndpoint configuration value to be HTTPS
  only on systems that allow such enforcement.

Versioning

Enhancements

• Add information about packaging project versioning. This allows packaging
  projects to be released as stable without the need for the project they
  package to be stable.

---

Full Changelog: v1.1.0...v1.2.0

Release 1.1.0

Repository

• Update template CODEOWNERS file to include the Splunk documentation team.
• Add repository LICENSE template.
• Clarify maintainer and approver teams can be shared across repositories.

Configuration

• Add support for the OTEL_SERVICE_NAME environment variable.
• Remove suggestion for end users of instrumentation libraries to provide
  configuration.
• Add RUM libraries configuration specification.
• Set the default value for OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT to 12000,
  instead of the default OpenTelemetry of unlimited.
• Require repositories to link to official Splunk docs in README.md.
• Add Serverless libraries configuration specification.

Profiling

• Initial, experimental, specification for profiling libraries added.

Release 1.0.0

General

• First stable release of the GDI specification. This release includes stable requirements and recommendations for GDI repository composition and versioning and Splunk distributions of OpenTelemetry configuration.