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Release Notes.

8.4.0

Project

Incompatible with previous releases when use H2/MySQL/TiDB storage options, due to support multiple alarm rules triggered for one entity.
Chore: adapt create_source_release.sh to make it runnable on Linux.

Java Agent

The operation name of quartz-scheduler plugin, has been changed as the quartz-scheduler/${className} format.
Fix jdk-http and okhttp-3.x plugin did not overwrite the old trace header.

OAP-Backend

Make meter receiver support MAL.
Support influxDB connection response format option. Fix some error when use JSON as influxDB response format.
Support Kafka MirrorMaker 2.0 to replicate topics between Kafka clusters.
Add the rule name field to alarm record storage entity as a part of ID, to support multiple alarm rules triggered for one entity. The scope id has been removed from the ID.
Fix MAL concurrent execution issues

UI

Fix un-removed tags in trace query.
Fix unexpected metrics name on single value component.
Don't allow negative value as the refresh period.
Fix style issue in trace table view.
Separation Log and Dashboard selector data to avoid conflicts.
Fix trace instance selector bug.

Documentation

All issues and pull requests are here

Find change logs of all versions here.