import Experimental from "versionContent/_partials/_experimental.mdx";
In $TIMESCALE_DB 2.8 and above, policy management on continuous aggregates is simplified. You can add, change, or remove the refresh, compression, and data retention policies on a continuous aggregate using a one-step API. For more information, see the APIs for adding policies, altering policies, and removing policies. Note that this feature is experimental.
When you change policies with this API, the changes apply to the continuous aggregate, not to the original hypertable. For example, if you use this API to set a retention policy of 20 days, chunks older than 20 days are dropped from the continuous aggregate. The retention policy of the original hypertable remains unchanged.