Hello everyone, I am Wenwei Shu, a new contributor to Apache IoTDB. Recently, we are working on merging `iotdb-confignode.properties`, `iotdb-datanode.properties` and `iotdb-common.properties` into a new `iotdb-system.properties` file. For old version users who upgrade to a new version, if they don't create the new configuration file themselves during the upgrade, IoTDB will generate the new configuration file based on several old configuration files after it is started. You can check this PR to get more details: https://github.com/apache/iotdb/pull/12570. Thank you for your reading.
Best regards, Wenwei Shu
