Version 1.31.0

API

Incubator

• Refactor advice API to simplify usage (#5848)

SDK

• BatchLogRecordProcessor and BatchSpanProcessor unify queueSize metric description and attribute name for processorType (#5836)

Metrics

• Allow instrument names to contain a forward slash (#5824)
• Memory Mode support: Adding memory mode, and implementing it for Asynchronous Instruments (#5709, #5855)
• Stabilize MetricProducer, allow custom MetricReaders (#5835)
• Drop NaN measurements to metric instruments (#5859)
• Fix flaky MetricExporterConfigurationTest (#5877)

Logs

• Add addAllAttributes() to ReadWriteLogRecord. (#5825)

Exporters

• Prometheus exporter: handle colliding metric attribute keys (#5717)

SDK Extensions

• File configuration ConfigurationReader handles null values as empty (#5829)

Semantic conventions

• BREAKING: Stop publishing io.opentelemetry:opentelemetry-semconv. Please use io.opentelemetry.semconv:opentelemetry-semconv:1.21.0-alpha instead, which is published from open-telemetry/semantic-conventions-java. The new repository is published in lockstep with open-telemetry/semantic-conventions. (#5807)

Project Tooling

• Add Benchmark workflows (#5842, #5874)
• Add clearer docs around coroutine support with an example (#5799)

🙇 Thank you

This release was possible thanks to the following contributors who shared their brilliant ideas and awesome pull requests:

@aabmass
@asafm
@breedx-splk
@cbos
@cmunger
@dashpole
@evantorrie
@jack-berg
@jkwatson
@laurit
@LikeTheSalad
@mateuszrzeszutek
@puckpuck
@scprek
@trask
@tylerbenson