What's New in Apache Dubbo 2.7.7? Features, Enhancements, and Bug Fixes

Apache Dubbo 2.7.7 has been released. Dubbo is a high‑performance, lightweight open‑source Java RPC framework that provides three core capabilities: interface‑based remote method invocation, intelligent fault tolerance and load balancing, and automatic service registration and discovery.

Features

[Solution] Integration of Apache Dubbo with Nacos authentication (issue #5956)

[Dubbo-5130] Complete LFU cache implementation (issue #5734)

[Feature] Ability for applications to select a preferred network interface (issue #5795)

[Dubbo-Performance] Reuse Hessian2Output and Hessian2Input instances to reduce memory usage (issue #5889)

[Feature] In‑Memory MetadataReportFactory implementation (issue #6050)

Naming issues for @reference and @service annotations (issue #6074)

Support for timeout propagation and countdown in RPC call chains (issue #6008)

New load‑balancing strategies added (issue #6064)

Enhancements

Invoke onThrowable when RPC call fails (issue #5828)

Upgrade fastjson to 1.2.68 (issue #5941)

Upgrade hessian‑lite to 3.2.7 (issue #5964)

Publish ThreadPoolExhaustedEvent when thread pool is exhausted (issue #5958)

Fix ReferenceConfig(null) not destroyed in FINALIZE state (issue #5863)

Add a build‑tool module for Apache License (issue #6060)

Add overload rules for ExtensionLoader (issue #6068)

Resolve placeholder issues in XML BeanDefinition configuration classes (issue #6079)

Ignore deserialization when service/method not found (issue #5733)

Dynamic configuration returns default value when implementation missing (issue #6086)

Change monitor object to final state for optimization (issue #6081)

Support merging when using @method or @DubboReference (issue #6092)

The new release also includes numerous bug fixes; see the official announcement for details.