> ## Documentation Index
> Fetch the complete documentation index at: https://docs.aseeflow.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Migration between Specification Versions

The following sections describe the necessary steps to migrate CMMN models from a given specification version to the next specification version.

* [**1.0 to 1.1**](/reference/cmmn11/migration/10-to-11) — Migrate models from CMMN 1.0 to CMMN 1.1.