DataStax's Adelphi project aims to simplify Apache Cassandra® cluster upgrades by providing tools for validating current schemas and comparing performance between different versions. The Argo workflow component creates instances of both the source and target clusters, executes tests, and monitors performance. A Python package automates tasks such as generating configuration files and anonymizing schemas for contribution to a public repository. Adelphi is open-source, and contributions from the Cassandra community are encouraged to improve the project further.