- Introduces multiple breaking API changes across consumer, exporter test modules, service hosting, and config handling, removing several deprecated functions and altering exporter request methods.
- Adds new features such as LZ4 compression support, profiles support in OTLP exporters, customizable generated package names in mdatagen, and a fast‑fail retry sender when context timeouts are short.
- Launches a new consumererrorprofiles module and includes several bug fixes in builder defaults and processor helper handling.