35 lines
1.7 KiB
Markdown
35 lines
1.7 KiB
Markdown
# Release Notes - v0.5.1
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## Observability Enhancements
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### OTLP Metrics Support
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- **New `metrics/` package** - OpenTelemetry-native metrics with OTLP export support for structured metrics collection
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- **Centralized OTLP configuration** - Refactored configuration to `internal/tracerconfig/` to eliminate code duplication across tracing, logging, and metrics
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- **HTTP retry support** - Added consistent retry configuration for all HTTP OTLP exporters to improve reliability
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### Enhanced Logging
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- **Buffering exporter** - Added OTLP log buffering to queue logs until tracing configuration is available
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- **TLS support for logs** - Client certificate authentication support for secure OTLP log export
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- **Improved logfmt formatting** - Better structured output for log messages
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### Tracing Improvements
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- **HTTP retry support** - OTLP trace requests now automatically retry on failure when using HTTP transport
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## Build System
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### Version Package Enhancements
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- **Unix epoch build time support** - Build time can now be injected as Unix timestamps (`$(date +%s)`) in addition to RFC3339 format
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- **Simplified build commands** - Reduces complexity of ldflags injection while maintaining backward compatibility
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- **Consistent output format** - All build times normalize to RFC3339 format regardless of input
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## API Changes
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### New Public Interfaces
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- `metrics.NewMeterProvider()` - Create OTLP metrics provider with centralized configuration
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- `metrics.Shutdown()` - Graceful shutdown for metrics exporters
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- `internal/tracerconfig` - Shared OTLP configuration utilities (internal package)
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### Dependencies
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- Added explicit OpenTelemetry metrics dependencies to `go.mod`
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- Updated tracing dependencies for retry support
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