• Fix spring inherit issue in another way
• Fix classloader dead lock in jdk7+ - 5.x
• Support Spring mvc 5.x
• Support Spring webflux 5.x

• Fix too many open files.
• Fix the buffer file cannot delete.

• Add several package names ignore in agent settings. Classes in these packages would be enhanced, even plugin declared.
• Support Undertow 2.x plugin.
• Fix wrong class names of Motan plugin, not a feature related issue, just naming.

• Make buffer file handler close more safety.
• Fix NPE in AlarmService

• Fix compiling doc link.
• Update new live demo address.

• Support ActiveMQ 5.x
• Support RuntimeContext used out of TracingContext.
• Support Oracle ojdbc8 Plugin.
• Support ElasticSearch client transport 5.2-5.6 Plugin
• Support using agent.config with given path through system properties.
• Add a new way to transmit the Request and Response, to avoid bugs in Hytrix scenarios.
• Fix HTTPComponent client v4 operation name is empty.
• Fix 2 possible NPEs in Spring plugin.
• Fix a possible span leak in SpringMVC plugin.
• Fix NPE in Spring callback plugin.

• Add GZip support for Zipkin receiver.
• Add new component IDs for nodejs.
• Fix Zipkin span receiver may miss data in request.
• Optimize codes in heatmap calculation. Reduce unnecessary divide.
• Fix NPE in Alarm content generation.
• Fix the precision lost in ServiceNameService#startTimeMillis.
• Fix GC count is 0.
• Fix topology breaks when RPC client uses the async thread call.

• Fix UI port can't be set by startup script in Windows.
• Fix Topology self link error.
• Fix stack color mismatch label color in gc time chart.

• Add users list.
• Fix several document typo.
• Sync the Chinese documents.
• Add OpenAPM badge.
• Add icon/font documents to NOTICE files.

Issues and Pull requests

• Add order and status in trace query.

• Add SOFA plugin.
• Add witness class for Kafka plugin.
• Add RuntimeContext in Context.
• Fix RuntimeContext fail in Tomcat plugin.
• Fix incompatible for getPropertyDescriptors in Spring core.
• Fix spymemcached plugin bug.
• Fix database URL parser bug.
• Fix StringIndexOutOfBoundsException when mysql jdbc url without databaseName。
• Fix duplicate slash in Spring MVC plugin bug.
• Fix namespace bug.
• Fix NPE in Okhttp plugin when connect failed.
• FIx MalformedURLException in httpClientComponent plugin.
• Remove unused dependencies in Dubbo plugin.
• Remove gRPC timeout to avoid out of memory leak.
• Rewrite Async http client plugin.
• [Incubating] Add trace custom ignore optional plugin.

• Topology query optimization for more than 100 apps.
• Error rate alarm is not triggered.
• Tolerate unsupported segments.
• Support Integer Array, Long Array, String Array, Double Array in streaming data model.
• Support multiple entry span and multiple service name in one segment durtaion record.
• Use BulkProcessor to control the linear writing of data by multiple threads.
• Determine the log is enabled for the DEBUG level before printing message.
• Add static modifier to Logger.
• Add AspNet component.
• Filter inactive service in query.
• Support to query service based on Application.
• Fix RemoteDataMappingIdNotFoundException
• Exclude component-libaries.xml file in collector-*.jar, make sure it is in /conf only.
• Separate a single TTL in minute to in minute, hour, day, month metric and trace.
• Add order and status in trace query.
• Add folder lock to buffer folder.
• Modify operationName search from match to match_phrase.
• [Incubating] Add Zipkin span receiver. Support analysis Zipkin v1/v2 formats.
• [Incubating] Support sharding-sphere as storage implementor.

• Support login and access control.
• Add new webapp.yml configuration file.
• Modify webapp startup script.
• Link to trace query from Thermodynamic graph
• Add application selector in service view.
• Add order and status in trace query.

• Add architecture design doc.
• Reformat deploy document.
• Adjust Tomcat deploy document.
• Remove all Apache licenses files in dist release packages.
• Update user cases.
• Update UI licenses.
• Add incubating sections in doc.

Issues and Pull requests

• Replace all tps to throughput/cpm(calls per min)
• Add getThermodynamic service
• Update version to beta

• Support TLS.
• Support namespace.
• Support direct link.
• Support token.
• Add across thread toolkit.
• Add new plugin extend machenism to override agent core implementations.
• Fix an agent start up sequence bug.
• Fix wrong gc count.
• Remove system env override.
• Add Spring AOP aspect patch to avoid aop conflicts.

• Trace query based on timeline.
• Delete JVM aggregation in second.
• Support TLS.
• Support namespace.
• Support token auth.
• Group and aggregate requests based on response time and timeline, support Thermodynamic chart query
• Support component librariy setting through yml file for better extendibility.
• Optimize performance.
• Support short column name in ES or other storage implementor.
• Add a new cache module implementor, based on Caffeine.
• Support system property override settings.
• Refactor settings initialization.
• Provide collector instrumentation agent.
• Support .NET core component libraries.
• Fix divide zero in query.
• Fix Data don't remove as expected in ES implementor.
• Add some checks in collector modulization core.
• Add some test cases.

• New trace query UI.
• New Application UI, merge server tab(removed) into application as sub page.
• New Topology UI.
• New response time / throughput TopN list.
• Add Thermodynamic chart in overview page.
• Change all tps to cpm(calls per minutes).
• Fix wrong osName in server view.
• Fix wrong startTime in trace view.
• Fix some icons internet requirements.

• Add TLS document.
• Add namespace document.
• Add direct link document.
• Add token document.
• Add across thread toolkit document.
• Add a FAQ about, Agent or collector version upgrade.
• Sync all English document to Chinese.

Issues and Pull requests

• Remove C++ keywords
• Move Ref into Span from Segment
• Add span type, when register an operation

• First version protocol

• Support gRPC 1.x plugin
• Support kafka 0.11 and 1.x plugin
• Support ServiceComb 0.x plugin
• Support optional plugin mechanism.
• Support Spring 3.x and 4.x bean annotation optional plugin
• Support Apache httpcomponent AsyncClient 4.x plugin
• Provide automatic agent daily tests, and release reports here.
• Refactor Postgresql, Oracle, MySQL plugin for compatible.
• Fix jetty client 9 plugin error
• Fix async APIs of okhttp plugin error
• Fix log config didn't work
• Fix a class loader error in okhttp plugin

• Support metrics analysis and aggregation for application, application instance and service in minute, hour, day and month.
• Support new GraphQL query protocol
• Support alarm
• Provide a prototype instrument for collector.
• Support node speculate in cluster and application topology. (Provider Node -> Consumer Node) -> (Provider Node -> MQ Server -> Consumer Node)

• New 5.0.0 UI!!!

Issues and Pull requests