The Apollo Federation team has announced new free tools to help developers use federation, an architecture for composing multiple graphs into a single data graph. The new tools include improvements in Apollo Studio for managing federated graphs, Rover, a new open-source Rust CLI for interacting with graphs and schemas, and Workbench, an open-source VS Code extension for designing and growing federated schemas. Federation allows developers to compose subgraphs into a supergraph, making it easier to manage complex data relationships. The tools aim to simplify the process of developing and consuming federated graphs, reducing the feedback loop between changes and impact on the supergraph.