Release v1.30.0/v0.52.0/v0.6.0/v0.0.9

[XSAM]

Added

• Support OTEL_EXPORTER_OTLP_LOGS_INSECURE and OTEL_EXPORTER_OTLP_INSECURE environments in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc. (Support OTEL_EXPORTER_OTLP_LOGS_INSECURE and OTEL_EXPORTER_OTLP_INSECURE environments in grpc exporter #5739)
• The WithResource option for NewMeterProvider now merges the provided resources with the ones from environment variables. (fix(metric, log): merge explicit resource with environment variables #5773)
• The WithResource option for NewLoggerProvider now merges the provided resources with the ones from environment variables. (fix(metric, log): merge explicit resource with environment variables #5773)
• Add UTF-8 support to go.opentelemetry.io/otel/exporters/prometheus. (Add utf8 support to the prometheus exporter #5755)

Fixed

• Fix memory leak in the global MeterProvider when identical instruments are repeatedly created. (Fix duplicate instrumentation memory leak #5754)
• Fix panic on instruments creation when setting meter provider. (Fix panic instruments creation when setting meter provider #5758)
• Fix an issue where SetMeterProvider in go.opentelemetry.io/otel might miss the delegation for instruments and registries. (SetMeterProvider might miss the delegation for instruments and registries #5780)

Removed

• Drop support for Go 1.21. (Drop support for Go 1.21 #5736, Replace go 1.21 with go 1.22 in go mod #5740, Drop support for Go 1.21 in dice example #5800)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.5%. Comparing base (cdd2dbb) to head (2f0a6c0).
Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #5797   +/-   ##
=====================================
  Coverage   84.5%   84.5%           
=====================================
  Files        272     272           
  Lines      22773   22773           
=====================================
  Hits       19258   19258           
  Misses      3172    3172           
  Partials     343     343           

[XSAM]

Waiting #5800 to be merged

[MrAlias]

Waiting #5800 to be merged

Merged.