open-telemetry/opentelemetry-dotnet coreunstable-1.16.0-beta.1 on GitHub

The following changes are from the previous release 1.15.3-beta.1.

NuGet: OpenTelemetry.Exporter.Prometheus.AspNetCore v1.16.0-beta.1
- Fixed scrape response cache freshness using monotonic time so it is not
  affected by NTP system clock adjustments.
  (#7253)
- Breaking Change Removed DisableTimestamp property from
  PrometheusAspNetCoreOptions.
  (#7176)
- Fixed the serialization of NaN, PositiveInfinity, and NegativeInfinity
  values in Prometheus metrics to be compliant with the specification.
  (#7179)
- Fixed loss of precision when serializing double and float values in
  Prometheus metrics to be compliant with the specification by using 17
  significant digits to represent such values.
  (#7179)
- Fix non-ASCII characters in metric names and unit strings not being sanitized
  correctly during Prometheus serialization.
  (#7184)
- Fix case where reader tracking could be reset while readers were still active.
  (#7190)
- Improve Accept header handling for format negotiation so OpenMetrics is
  selected correctly by considering whitespace and q weights.
  (#7208)
- Emit OpenMetrics exemplars for counters and histogram buckets.
  (#7222)
- Fix incorrect handling of untyped metrics when using OpenMetrics format.
  (#7219)
- Fix Prometheus/OpenMetrics serialization to emit metric and label names
  containing _ instead of dropping them and prefixing leading digits.
  Invalid characters are replaced with _ instead of being dropped.
  (#7209)
- Add escaping=underscores to the Accept header handling for content
  negotiation so OpenMetrics are handled correctly.
  (#7209)
- Omit histogram _sum and _count in OpenMetrics when negative bucket
  thresholds are present.
  (#7221)
- Fix ArgumentException if OTEL_SDK_DISABLED=true.
  (#7273)
- Update Accept header parsing to more closely follow the Prometheus
  Scrape protocol content negotiation
  specification.
  (#7266)
- Abort scrape request processing if request exceeds the value specified by the
  X-Prometheus-Scrape-Timeout-Seconds HTTP request header.
  (#7252)
- Use the canonical representation for histogram "le" label values when using
  OpenMetrics.
  (#7218)
- Add Prometheus text fallback target_info output as a gauge.
  (#7238)
- Merge colliding sanitized label keys.
  (#7239)
- Export {name}_created series for counters and histograms when using
  OpenMetrics and a start time is available.
  (#7223)
- GZip compress scrape endpoint responses when Accept-Encoding: gzip is
  specified by the HTTP request headers.
  (#7274)
- Include instrumentation scope metadata on samples using otel_scope_* labels
  including scope version, schema URL, and prefixed scope attributes. OpenMetrics
  output no longer emits a separate otel_scope_info scope metadata metric.
  (#7237)
- Drop conflicting scope attributes named name, version, and schema_url.
  (#7237)
- Updated OpenTelemetry core component version(s) to 1.16.0.
  (#52)
See CHANGELOG for details.
NuGet: OpenTelemetry.Exporter.Prometheus.HttpListener v1.16.0-beta.1
- Fixed scrape response cache freshness using monotonic time so it is not
  affected by NTP system clock adjustments.
  (#7253)
- Added Host and Port properties on PrometheusHttpListenerOptions
  for configuring the HTTP listener endpoint. The
  PrometheusHttpListenerOptions.UriPrefixes property is now obsolete and
  will be removed in the stable release.
  (#7114)
- Breaking Change Removed DisableTimestamp property from
  PrometheusHttpListenerOptions.
  (#7176)
- Fixed the serialization of NaN, PositiveInfinity, and NegativeInfinity
  values in Prometheus metrics to be compliant with the specification.
  (#7179)
- Fixed loss of precision when serializing double and float values in
  Prometheus metrics to be compliant with the specification by using 17
  significant digits to represent such values.
  (#7179)
- Fix non-ASCII characters in metric names and unit strings not being sanitized
  correctly during Prometheus serialization.
  (#7184)
- Add support for caching the scrape endpoint HTTP responses using the
  PrometheusHttpListenerOptions.ScrapeResponseCacheDurationMilliseconds option.
  The default value is 300 milliseconds. Set the option to 0 to disable
  response caching.
  (#7189)
- Fix case where reader tracking could be reset while readers were still active.
  (#7190)
- Improve Accept header handling for format negotiation so OpenMetrics is
  selected correctly by considering whitespace and q weights.
  (#7208)
- Emit OpenMetrics exemplars for counters and histogram buckets.
  (#7222)
- Fix incorrect handling of untyped metrics when using OpenMetrics format.
  (#7219)
- Add support for configuring the HTTP listener endpoint host and port using
  the OTEL_EXPORTER_PROMETHEUS_HOST and OTEL_EXPORTER_PROMETHEUS_PORT
  environment variables.
  (#7167,
  #7255)
- Fix Prometheus/OpenMetrics serialization to emit metric and label names
  containing and _ instead of dropping them and prefixing leading digits.
  Invalid characters are replaced with _ instead of being dropped.
  (#7209)
- Add escaping=underscores to the Accept header handling for content
  negotiation so OpenMetrics are handled correctly.
  (#7209)
- Omit histogram _sum and _count in OpenMetrics when negative bucket
  thresholds are present.
  (#7221)
- Update Accept header parsing to more closely follow the Prometheus
  Scrape protocol content negotiation
  specification.
  (#7266)
- Abort scrape request processing if request exceeds the value specified by the
  X-Prometheus-Scrape-Timeout-Seconds HTTP request header.
  (#7252)
- Use the canonical representation for histogram "le" label values when using
  OpenMetrics.
  (#7218)
- Add Prometheus text fallback target_info output as a gauge.
  (#7238)
- Merge colliding sanitized label keys.
  (#7239)
- Export {name}_created series for counters and histograms when using
  OpenMetrics and a start time is available.
  (#7223)
- Include instrumentation scope metadata on samples using otel_scope_* labels
  including scope version, schema URL, and prefixed scope attributes. OpenMetrics
  output no longer emits a separate otel_scope_info scope metadata metric.
  (#7237)
- Drop conflicting scope attributes named name, version, and schema_url.
  (#7237)
- Updated OpenTelemetry core component version(s) to 1.16.0.
  (#52)
See CHANGELOG for details.
NuGet: OpenTelemetry.Shims.OpenTracing v1.16.0-beta.1
- Updated OpenTelemetry core component version(s) to 1.16.0.
  (#52)
See CHANGELOG for details.