open-telemetry/opentelemetry-specification v1.58.0 on GitHub

Clarify that environment variable propagation carriers normalize requested
keys, carrier keys, and returned keys.
(#5102)
Specify that environment variable propagation carriers only read and return
normalized environment variable names.
(#5144)
Specify that an empty environment variable propagation name is non-normalized
and normalizes to _.
(#5163)

Remove duplicate information from and extend Profiles documentation (README.md, pprof.md).
(#4932)

Add specification for communicating entity information as structured log events.
(#4836)

Add an in-development SDK self-observability
section, referenced from the Tracing, Metrics, and Logs SDK specs.
(#5087)
Clarify non-OTLP representation guidance for nested AnyValue values in
arrays and maps.
(#5053)
Add in-development guidance recommending a JSON object as the string
representation for an attribute in non-OTLP protocols.
(#5028)
Add in-development guidance recommending a JSON object as the string
representation for an attribute collection in non-OTLP protocols.
(#5110)

Deprecate OpenCensus compatibility requirements in the specification.
(#5138)
Stabilize sections of Prometheus Metrics Exporter.
- Clarify resource attributes configuration.
  (#5084)
- Stabilize the conversion of OTLP Summaries into Prometheus Summaries.
  (#5107)
- Stabilize client libs section.
  (#5106)
- Stabilize Prometheus Metrics Exporter default aggregation configuration.
  (#5113)
Stabilize sections of Prometheus and OpenMetrics Compatibility.
- Stabilize OpenTelemetry Histogram to Prometheus Histogram transformation.
  (#5091)
Add optional OpenTelemetry Histogram to Prometheus Native Histogram with Custom Buckets transformation.
(#5091)

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