An attrition rate / churn newsletter is a regularly published communication that provides updates and insights on the rate at which customers or subscribers are leaving a company or service. This type of newsletter is typically used by businesses to track and analyze customer retention, identify potential issues, and implement strategies to reduce churn. It may also include tips and best practices for retaining customers, as well as success stories and case studies from other companies. The goal of an attrition rate / churn newsletter is to help businesses understand and improve their customer retention efforts, ultimately leading to increased customer loyalty and revenue.