v1.20.0 (2023-04-07)

Context

Clarify required parent information in ReadableSpan. Technically a relaxation,
but previously it was easy to overlook certain properties were required.
(#3257)
Remove underspecified and unused Span decorator from Trace SDK.
(#3363)

Update log readme "request context" to "trace context".
(#3332)
Remove log readme document status.
(#3334)
Break out compatibility document on recording trace context in non-OTLP Log Format
(#3331)
Ensure Logs Bridge API doesn't contain SDK implementation details
(#3275)
Add Log Bridge API artifact naming guidance
(#3346)
Add log appender / bridge to glossary.
(#3335)

Clarify that attribute requirement levels apply to the instrumentation library
(#3289)
Fix grammatical number of metric units.
(#3298)
Rename net.app.protocol.(name|version) to net.protocol.(name|version)
(#3272)
Replace http.flavor with net.protocol.(name|version)
(#3272)
Metric requirement levels are now stable
(#3271)
BREAKING: remove messaging.destination.kind and messaging.source.kind.
(#3214,
#3348)
Define attributes collected for cosmosdb by Cosmos DB SDK
(#3097)
Clarify stability requirements of semantic conventions
(#3225)
BREAKING: Change span statuses for gRPC server spans.
(#3333)
Stabilize key components of service.* and telemetry.sdk.* resource
semantic conventions.
(#3202)
Fixed attributes requirement level in semantic conventions for hardware metrics
(#3258)
Added AWS S3 semantic conventions.
(#3251)
Fix units in the Kafka metric semantic conventions.
(#3300)
Add Trino to Database specific conventions
(#3347)
Change db.statement to only be collected if there is sanitization.
(#3127)
BREAKING: Remove http.status_code attribute from the
http.server.active_requests metric.
(#3366)
Mark attribute requirement levels as stable
(#3368)