In Spring Cloud Sleuth, BraveAutoConfiguration provided a default SpanCustomizer bean . It could then be enhanced by the user application to provide additional metadata.

With the upgrade to Spring Boot 3.0, the tracing implementation has moved into Micrometer, and its autoconfiguration has moved into Spring Boot proper.

Would it be possible for Spring Boot to provide a default Micrometer Trace SpanCustomizer in Spring Boot autoconfiguration?

cc: @marcingrzejszczak , @JoeWang1127