- Issue #855: Updated resilience4j-spring-boot2 to 2.3.0.RELEASE
- Issue #855: Updated resilience4j-spring-cloud2 to 2.2.2.RELEASE
- Issue #942: Introduced new CB metric "notPermittedCalls"
- Issue #964: Added Kotlin DSL for building *Config and *Registry classes
- Issue #979: Added fairCallHandlingEnabled flag to BulkheadConfig which controls whether FairSync or NonfairSync should be used in the Semaphore.
- Issue #982: Added support to configure exponential random backoff via Spring config
- Issue #991: Fixed bug that auto transition to half_open happens even if the state is forced open.
- Issue #1000: Added toString to CircuitBreakerConfig
- Issue #1003: Fixed bug that CircuitBreaker tries to obtain permission twice in circuitBreaker.decorateEitherSupplier()