| ## 8.6.0 |
| |
| #### Project |
| * Add OpenSearch as storage option. |
| * Upgrade Kubernetes Java client dependency to 11.0. |
| * Fix plugin test script error in macOS. |
| |
| #### Java Agent |
| * Add `trace_segment_ref_limit_per_span` configuration mechanism to avoid OOM. |
| * Improve `GlobalIdGenerator` performance. |
| * Add an agent plugin to support elasticsearch7. |
| * Add `jsonrpc4j` agent plugin. |
| * new options to support multi skywalking cluster use same kafka cluster(plugin.kafka.namespace) |
| * resolve agent has no retries if connect kafka cluster failed when bootstrap |
| * Add Seata in the component definition. Seata plugin hosts on Seata project. |
| * Extended Kafka plugin to properly trace consumers that have topic partitions directly assigned. |
| * Support Kafka consumer 2.8.0. |
| * Support print SkyWalking context to logs. |
| * Add `MessageListener` enhancement in pulsar plugin. |
| * fix a bug that spring-mvc set an error endpoint name if the controller class annotation implements an interface. |
| * Add an optional agent plugin to support mybatis. |
| * Add `spring-cloud-gateway-3.x` optional plugin. |
| * Add `okhttp-4.x` plugin. |
| * Fix NPE when thrift field is nested in plugin `thrift` |
| * Fix possible NullPointerException in agent's ES plugin. |
| * Fix the conversion problem of float type in ConfigInitializer. |
| * Fixed part of the dynamic configuration of ConfigurationDiscoveryService that does not take effect under certain circumstances. |
| * Introduce method interceptor API v2 |
| * Fix ClassCast issue for RequestHolder/ResponseHolder. |
| * fixed `jdk-threading-plugin` memory leak. |
| * Optimize multiple field reflection operation in Feign plugin. |
| * Fix `trace-ignore-plugin` TraceIgnorePathPatterns can't set empty value |
| |
| #### OAP-Backend |
| * BugFix: filter invalid Envoy access logs whose socket address is empty. |
| * Fix K8s monitoring the incorrect metrics calculate. |
| * Loop alarm into event system. |
| * Support alarm tags. |
| * Support WeLink as a channel of alarm notification. |
| * Fix: Some defensive codes didn't work in `PercentileFunction combine`. |
| * CVE: fix Jetty vulnerability. https://nvd.nist.gov/vuln/detail/CVE-2019-17638 |
| * Fix: MAL function would miss samples name after creating new samples. |
| * perf: use iterator.remove() to remove modulesWithoutProvider |
| * Support analyzing Envoy TCP access logs and persist error TCP logs. |
| * Fix: Envoy error logs are not persisted when no metrics are generated |
| * Fix: Memory leakage of low version etcd client. [fix-issue](https://github.com/jurmous/etcd4j/pull/185) |
| * Allow multiple definitions as fallback in metadata-service-mapping.yaml file and `k8sServiceNameRule`. |
| * Fix: NPE when configmap has no data. |
| * Fix: Dynamic Configuration key `slowTraceSegmentThreshold` not work |
| * Fix: `!=` is not supported in oal when parameters are numbers. |
| * Include events of the entity(s) in the alarm. |
| * Support `native-json` format log in kafka-fetcher-plugin. |
| * Fix counter misuse in the alarm core. Alarm can't be triggered in time. |
| * Events can be configured as alarm source. |
| * Make the number of core worker in meter converter thread pool configurable. |
| * Add HTTP implementation of logs reporting protocol. |
| * Make metrics exporter still work even when storage layer failed. |
| * Fix Jetty HTTP `TRACE` issue, disable HTTP methods except `POST`. |
| * CVE: upgrade snakeyaml to prevent [billion laughs attack](https://en.wikipedia.org/wiki/Billion_laughs#Variations) in dynamic configuration. |
| * polish debug logging avoids null value when the segment ignored. |
| |
| #### UI |
| * Add logo for kong plugin. |
| * Add apisix logo. |
| * Refactor js to ts for browser logs and style change. |
| * When creating service groups in the topology, it is better if the service names are sorted. |
| * Add tooltip for dashboard component. |
| * Fix style of endpoint dependency. |
| * Support search and visualize alarms with tags. |
| * Fix configurations on dashboard. |
| * Support to configure the maximum number of displayed items. |
| * After changing the durationTime, the topology shows the originally selected group or service. |
| * remove the no use maxItemNum for labeled-value metric, etc. |
| * Add Azure Functions logo. |
| * Support search Endpoint use keyword params in trace view. |
| * Add a function which show the statistics information during the trace query. |
| * Remove the sort button at the column of Type in the trace statistics page. |
| * Optimize the APISIX icon in the topology. |
| * Implement metrics templates in the topology. |
| * Visualize Events on the alarm page. |
| * Update duration steps in graphs for Trace and Log. |
| |
| #### Documentation |
| * Polish k8s monitoring otel-collector configuration example. |
| * Print SkyWalking context to logs configuration example. |
| * Update doc about metrics v2 APIs. |
| |
| All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/84?closed=1) |
| |
| ------------------ |
| Find change logs of all versions [here](). |
