Prometheus 3.0 and OpenTelemetry: a practical guide to storing and querying OTel data

Prometheus 3.0 aims to improve integration with OpenTelemetry by addressing challenges such as resource attributes, UTF-8 support, and temporalities. The Prometheus 3.0 release includes features like promoting resource attributes to metric labels, a new `info` PromQL function, and stable OTLP support for easier data ingestion and querying. Users can also utilize the delta to cumulative processor in OTel Collector for better data handling. Future developments will focus on enhancing interoperability and scalability.