• Added HTTP request metrics for ASP.NET Core.
• Somewhat more realistic examples in readme.
• Metrics exporter is now significantly more CPU and memory-efficient.
• Added Observe(value, count) to histogram metric, enabling multiple observations with the same value to be counted.
• Added CountExceptions() and MeasureInProgress() helper extensions.
• Adjusted API to better conform to Prometheus client library guidelines in terms of default values.
• Breaking change: assemblies are now strong-named.
• Breaking change: removed "windows" from built-in metric names as they are not Windows-specific.
• Breaking change: removed support for protobuf export format (it is no longer used by Prometheus).
• Breaking change: API surface cleaned up, removed some legacy methods, made many internal types actually internal.
• Breaking change: "on demand collectors" concept replaced with simpler "before collect callbacks". Works the same, just less code needed to use it and fewer possible error conditions.
• Breaking change: removed support for "custom collectors", as this was a very special use case that did not benefit at all from the main functionality of the library. Just generate a Prometheus exporter output document yourself if you need to export arbitrary data.