If you've been using EventCounters for instrumenting your .NET applications, it's time to consider migrating to the newer System.Diagnostics.Metrics API. Based on the OpenTelemetry specification, the Metrics API offers a more modern, flexible, and standardized approach to application instrumentation. Why migrate? The Metrics API provides several advantages over EventCounters: Industry Standard : Built on OpenTelemetry, ensuring compatibility with a wide ecosystem of monitoring tools Better Performance : More efficient with lower overhead Richer Functionality : Support for histograms, exemplars, and more sophisticated metric types Improved API Design : Cleaner, more intuitive interface for defining and recording metrics Better Tooling Support : Growing ecosystem support from APM vendors and monitoring solutions Microsoft has indicated that EventCounters are in maintenance mode, with new development focused on the Metrics API. So reasons enough to m...