Audit for 1.14.0 spec compliance

[ahayworth]

Spec release 1.14.0 is available:

• Release notes
• Diff v1.13.0...v1.14.0

The release should be audited for issues pertinent to opentelemetry-ruby, and issues created for any outstanding spec compliance work. Make sure to tag those issues with the spec-compliance and spec-compliance/v1.14.0 labels, and add them to the Spec Compliance project.

[ahayworth]

Traces

No changes.

Context

No changes.

Metrics

• Changed the default buckets for Explicit Bucket Histogram to better match the official Prometheus clients. (Change the default buckets for Explicit Bucket Histogram opentelemetry-specification#2770).
• Fix OpenMetrics valid label keys, and specify prometheus conversion for metric name. (Fix OpenMetrics valid label keys, and specify prometheus conversion for metric name. opentelemetry-specification#2788)

Logs

Logs?! What logs? 🙃

Resource

• The following would get pulled in when we update the semconv gem to 1.14
  • Add browser.mobile and browser.language resource attributes (Add mobile and language semconv for browser resource opentelemetry-specification#2761)

Semantic Conventions

• The following would get pulled in when we update the semconv gem to 1.14
  • Add process.context_switches, and process.open_file_descriptors, to the metrics semantic conventions (Add additional process metrics to the metrics semantic conventions opentelemetry-specification#2706)
  • Add exceptions to the logs semantic conventions ([Logs] Add semantic conventions for writing exceptions opentelemetry-specification#2819)
  • Update http metrics to use http.route instead of http.target for servers, drop http.url for clients (Fix inconsistent metric usage of http.target opentelemetry-specification#2818).
• Make context propagation requirements explicit for messaging semantic conventions (Make messaging context propagation requirements explicit opentelemetry-specification#2750).
  • This is actually more relevant for the -contrib repo and will be tracked there.

Compatibility

No changes.

OpenTelemetry Protocol

• Add user agent to OTLP exporter specification (add user agent to OTLP exporter spec opentelemetry-specification#2684)
• Prohibit usage of enum value name strings in OTLP/JSON (Prohibit usage of enum value name strings in OTLP/JSON opentelemetry-specification#2758)
  • ✅ We don't implement OTLP/JSON
• Clarify that unknown fields must be ignored when receiving OTLP/JSON (Clarify that unknown fields must be ignored when receiving OTLP/JSON opentelemetry-specification#2816)
  • ✅ We don't implement OTLP/JSON
• Add OTLP exporter user agent to the spec compliance matrix (Update compliance matrix to reflect the OTLP user agent spec opentelemetry-specification#2842).
  • When we add user agent, we should update the spec-compliance matrix.

SDK Configuration

• Add the OTEL_SDK_DISABLED environment variable to the SDK configuration. (Add OTEL_SDK_DISABLED env var to disable opentelemetry SDK. opentelemetry-specification#2679)
• Add the definition of a Boolean environment variable (Definition of boolean environment variables on the SDK opentelemetry-specification#2755).

Telemetry Schemas

No changes.

Common

No changes.

[github-actions]

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