From Delta Sharing to OpenSharing: What Changed, What's Next
Databricks, Thursday, November 5th, 2026
Databricks explains how Delta Sharing evolved into OpenSharing, an open protocol covering agent skills, AI models, and unstructured data.
On June 10, 2026, Databricks and the Linux Foundation announced that Delta Sharing has evolved into OpenSharing, a vendor-neutral protocol for sharing tables plus agent skills, AI models, and unstructured data.
Delta Sharing, introduced in 2021, had reached more than 28,000 data recipients, with about a third of shares flowing across platforms through open connectors.
OpenSharing brings a broader asset model into the open specification with a Share, Schema, Asset hierarchy, and extends reach to Apache Iceberg REST Catalog clients and on-premises or private cloud providers.
Existing Delta Sharing clients remain compatible, and open source Unity Catalog can be paired with an open sharing server to run governed sharing outside Databricks.