3.0.2 Release Note

Features

• improve generic service with @DubboService annotation.
• metadata report config support xml to config protocol and port.
• compatible for curator5.
• p2p invoke support wildcard url match.
• add Dynamic Configuration Override Support For ServiceDiscovery.
• add provider configuration override disable option.
• support native image.
• support disable shutdown hook.
• add Kubernetes Mesh Rule support.
• support SSL at netty transport.

BugFixs

• fix re-start override dynamic config.
• fix delete configurators does not take effect.
• fix triple protocol will throw exception when the service is exposed.
• fix ConfigCenterConfig.setAddress will override username problem.
• fix DefaultFuture.closeChannel will shutdown ExecutorService.
• fix TripleClientHandler#writeRequest throwing NPE problem.
• fix NPE when parse migration rule error happen.
• fix Activated Extensions order.
• fix URLAddress#parse method to judge the isPathAddress problem when the address is ipv6.
• fix custom parameter in configuration properties does not work.
• fix Config id Override when both using API and Spring.
• fix service discovery not work on bootstrap & fix address pollution.
• fix nacos registry can’t received instance change notify.
• fix could not resolve placeholder ‘${dubbo.application}’ in xml.
• fix service parameter fetch order.
• fix error of register dubbo bootstrap application listener manually.
• fix mock parameters doesn’t work when it contain ‘:’ or ‘=’.
• fix delete mesh rule npe.

Optimization

• add exception catch for RemovalTask, ensure semaphore release.
• check duplicated ReferenceConfig/ServiceConfig by unique service name.
• improve the performance for generating random numbers.
• if user define interface service discovery, not publish service name mapping info.
• use StringBuilder#append(Char) to improve performance.
• gRPC Compile class interface order.
• improve property placeholder resolving of reference bean.
• use CompletableFuture#get(long, TimeUnit) to take place of CompletableFuture#get() in MergeableClusterInvoker.
• service delay export config ignore metadata service.
• improve dubbo config beans and bootstrap initialization.
• improve duplicated config checking and add tests for reference annotation.
• replace with ring for registry notification & suppress property checker.
• improve dynamic configuration initialization.
• lock-free ConfigManager and improve config checking.
• modify metadata equals and instance listener.
• improve async export / refer.
• use TreeSet to ensure ServiceNames order when subscribe.
• make first tenth calls notify not delay RegistryNotifier.
• refactor compiler to generate new format stubs.
• change mesh rule group to config default value.
• compatible with nacos grouping via group.
• remove runtime params in ServiceInfo.
• throw RpcException when NacosException occurred.
• configcenter ban accessLogKey and FileRouterFactory key.
• improve config bean initialization compatible with spring 3.x/4.1.x.
• dubbo bootstrap start re-entry, export/refer new services.
• org.apache.dubbo.* add serialization whitelist.
• ensure generated config id is unique, checking existed config.
• compatible with filed change declaration override for Javaassist.
• refactor Codec check, default deny.
• compatible with adaptive extensions when ApplicationModel is null.

Code Improvement

Thanks for these contribution to improve stability of Apache Dubbo.

#8111, #8147, #8164, #8177, #8180, #8161, #8183, #8205, #8173, #8219, #8228, #8232, #8230, #8236, #8260, #8262, #8252, #8246, #8208, #8278, #8267, #8277, #8291, #8296, #8302, #8175, #8319, #8309, #8336, #8332, #8328, #8355, #8396, #8401, #8395, #8415, #8406, #8411, #8418, #8439, #8404, #8443

Dependency Changes

• remove dependency: org.eclipse.collections:eclipse-collections
• remove dependency: com.google.guava:guava
• jetty: 9.4.11.v20180605 -> 9.4.43.v20210629
• apollo client: 1.1.1 -> 1.8.0
• snakeyaml: 1.20 -> 1.29
• tomcat embed: 8.5.31 -> 8.5.69
• nacos client: 2.0.0 -> 2.0.2
• swagger: 1.5.19 -> 1.5.24
• hessian_lite: 3.2.8 -> 3.2.11

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