InfluxDB has introduced subqueries in version 1.2, a new feature that increases the functionality of InfluxQL queries, allowing for more granular insights into data. Subqueries are used to perform functions on functions or execute mathematical operations on query results, and can also be used to place specific conditions on the results of another query. The new feature is available in version 1.2 of InfluxDB and can be found in the documentation on the Data Exploration page.