Hi @Ariane,
Thank you for posting your question in Databricks community.
Regarding your concerns:
Yes, Databricks feature store allows you to update the feature table in case the feature values have changed. You can update the data in the Delta table underlying the feature table, then update the feature table accordingly with the new data.
Yes, Databricks feature store allows you to add new features or alter existing ones. When new data is available, you can create a new version of the feature table with the updated data and metadata. You can also include new features or alter existing ones by updating the schema of the feature table and triggering a new computation on the updated data.
