Changelog

v0.10.0 Latest

November 28, 2025

• Added adaptive export batching for OTLP and StatsD backends
• Introduced cardinality guards for high-volume label sets
• Reduced lock contention in counter and gauge hot paths
• Updated SDK examples for Python 3.13, Go 1.23, and Node.js 22

v0.9.4

January 15, 2025

• Fixed memory leak in histogram bucket allocation
• Improved Prometheus exporter performance under high cardinality
• Updated OTLP exporter to support gRPC compression
• Fixed label validation to reject empty strings

v0.9.3

November 20, 2024

• Added StatsD exporter with UDP and TCP support
• New mf.get_metrics() function for programmatic access
• Fixed interval timer drift on long-running processes
• Documentation improvements

v0.9.2

September 8, 2024

• Added Node.js SDK (@metricflow/sdk)
• OTLP exporter now supports HTTP transport
• Fixed counter race condition in multi-threaded environments
• Added default_labels configuration option

v0.9.1

July 3, 2024

• Added Histogram metric type with configurable buckets
• New YAML configuration file support
• Environment variable overrides for all config options
• Performance improvements for high-throughput scenarios

v0.9.0

May 12, 2024

• Initial release
• Counter and Gauge metric types
• Prometheus exporter
• Python and Go SDKs
• Basic stdout exporter for development