I had an issue during the migration of a project from Spring Boot version 3.1.5 to 3.2.0.

In 3.1.5 the Spring boot test suite was providing a "default" tracer. I was not able to find the configuration who was adding this tracer. (May be this one ?

In Spring Boot 3.2.0, no default Tracer is configured. Is this a regression or a wanted behavior ? Maybe this change need to be documented if it's a wanted behavior ?

I've fixed my project by adding an tracer implementation (micrometer-tracing-bridge-otel in my case) and by migrating from the @WebMvcTest annotation to the @SpringBootTest annotation + @AutoConfigureMockMvc annotation