- Add compatibilty with MicroProfile Config 2.0
- Add the concept of backing executors for ThreadContext instances, and related API/SPI methods
- API methods for creating context propagation-aware copies of existing completion stages
- Application context clarified to include the thread context class loader and namespace for Jakarta/Java EE applications
MicroProfile Context Propagation 1.2 aligns with MicroProfile 4.0, addressing some changes that were made in MicroProfile Config 2.0 with respect to the explicit configuration via MicroProfile Config properties of default handling for thread context types.