LaunchDarkly has introduced filters for Custom Metric Events, enabling users to define multiple metrics filtered by specific metadata from a single event key, thereby simplifying event instrumentation. This feature allows developers to send a generic event payload and then create more specific metrics within LaunchDarkly, reducing the need for multiple versions of the same event for granular insights. Filters can be applied to both event-level and context-level attributes, offering flexibility in metric creation while decreasing event sprawl. This advancement supports more efficient experimentation and scalable analytics by allowing targeted testing on specific slices of user data and enabling the use of logical statements to refine metric definitions. The feature is designed to ease the process of capturing granular insights without the overhead of duplicating events and is now available for all LaunchDarkly customers for use in both Guarded Releases and Experiments.