# Change Log --- - [feat: upgrade springdoc to 2.8.13](https://github.com/Tencent/spring-cloud-tencent/pull/1738) - [refactor:optimize auto configuration.](https://github.com/Tencent/spring-cloud-tencent/pull/1739) - [refactor:optimize config locate.](https://github.com/Tencent/spring-cloud-tencent/pull/1741) - [feat:support async metadata transfer.](https://github.com/Tencent/spring-cloud-tencent/pull/1743) - [fix:replace with string inside @ConditionalOnClass.](https://github.com/Tencent/spring-cloud-tencent/pull/1750) - [feat: support TagUtils, ContextToHeaderInterceptor in TSF.](https://github.com/Tencent/spring-cloud-tencent/pull/1754) - [deps:upgrade to spring boot 3.4.12.](https://github.com/Tencent/spring-cloud-tencent/pull/1756) - [fix: send unit header in tsf gw.](https://github.com/Tencent/spring-cloud-tencent/pull/1758) - [feat: add new key for java agent nacos discovery.](https://github.com/Tencent/spring-cloud-tencent/pull/1766) - [fix: beautify ServicesEagerLoadSmartLifecycle logging.](https://github.com/Tencent/spring-cloud-tencent/pull/1774) - [refactor:optimize metadata context operation.](https://github.com/Tencent/spring-cloud-tencent/pull/1773) - [fix: fix parsing ConfigurationProperties value with RefreshScope.](https://github.com/Tencent/spring-cloud-tencent/pull/1780) - [refactor: optimize performance.](https://github.com/Tencent/spring-cloud-tencent/pull/1782) - [fix: fix NacosDiscoveryRegistryAutoConfiguration and PolarisAuthAutoConfiguration still initiation when polaris disabled.](https://github.com/Tencent/spring-cloud-tencent/pull/1783) - [fix: fix cb rule no update bug.](https://github.com/Tencent/spring-cloud-tencent/pull/1786) - [feat: support traffic gray lane router](https://github.com/Tencent/spring-cloud-tencent/pull/1785) - [fix: fix NPE when application context is null #1787](https://github.com/Tencent/spring-cloud-tencent/pull/1787) - [fix: fix lane router property name.](https://github.com/Tencent/spring-cloud-tencent/pull/1789) - [feat: support kafka lane.](https://github.com/Tencent/spring-cloud-tencent/pull/1792) - [feat: server span support preferIpv6 in tsf.](https://github.com/Tencent/spring-cloud-tencent/pull/1790)