This version supports Retention policies. You can create a new retention policy, or post into existing ones, as well as query them. This version also supports querying multi series data.
There is a breaking change to GetInfluxDBStructureAsync, which now returns a custom InfluxDB object, which not only provides info about measurements, but also about tags and fields in each of them.
Now querying data which is returned in multiple series (e.g. show stats) is supported. Also supported is querying for InfluxDB server version.