The document provides information and timelines for Salesforce's planned retirement of Workflow Rules and Process Builders, and recommends migrating these to Flow. It outlines the planned rollout of migration tools from Spring 2022-Spring 2023 and notes best practices, order of execution, and resources for learning more about Flow. The key dates are the announcement of retirement in Fall 2021, availability of the Migrate to Flow tool in Spring 2022, and turning off the ability to create new Workflow Rules and Process Builders by late 2022.