Amazon RDS Extended Support Explained

Amazon RDS Extended Support is a paid service that provides security updates and critical fixes for older database versions that have reached the end of standard support, including RDS for PostgreSQL, RDS for MySQL, and their Aurora counterparts. While it ensures uninterrupted database functionality, it incurs a significant hourly charge per vCPU, which varies by region and increases over time, peaking after two years before the database is forcefully updated after three years, possibly causing compatibility issues. This service is designed to encourage customers to upgrade to newer versions as AWS takes on the maintenance responsibilities after community support ends. The cost of Extended Support can be substantial, prompting users to weigh the benefits against the potential expense and the inevitability of upgrading eventually.