The Apache IoTDB team is pleased to announce the release of Apache IoTDB
0.14.0-preview2.

Apache IoTDB (Database for Internet of Things) is an IoT native database
with high performance for data management and analysis, deployable on the
edge and the cloud.

0.14.0-preview2 is a preview release for the new IoTDB cluster,
which includes a number of new features and improvements for cluster version:

## New Features

* Support RestApi
* Support removing data node using Ratis consensus
* Support having clause in query
* Support Between expression
* Support order by timeseries in last query
* Support hot configuration of data_dirs
* Support schema template
* Support executeBatchStatement in JDBC
* Support new UDF 'change_points'

## Improvements

* Add memory control for query
* Balance write load of MultiLeader consensus
* Optimize python client query performance
* Optimize c++ client tablet insert performance
* Print detailed info when failed opening session
* Improve the performance of aligned series tsfile compaction
* Improve the performance of group by query by returning batch result in one 
TsBlock instead of one row
* Improve the performance of expression evaluation


The full release note is available at:
https://raw.githubusercontent.com/apache/iotdb/master/RELEASE_NOTES.md

The release is available for download at:
http://iotdb.apache.org/Download

Maven artifacts for JDBC driver, session SDK, TsFile SDK, Spark-connector,
Hadoop-connector, Hive-connector and Flink-connector can be found at:
https://search.maven.org/search?q=3Dg:org.apache.iotdb


Regards,
The Apache IoTDB team

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