CockroachDB's latest 25.2 release introduces Row-Level Security (RLS), a feature that enhances data access control by allowing permissions to be defined at the row level within the database. This fine-grained security measure is crucial as organizations modernize their data infrastructure, particularly in multi-tenant and multi-region scenarios where traditional table-level permissions fall short. RLS simplifies management by enabling logical data isolation within shared tables, reducing infrastructure costs and application complexity. It also ensures compliance with data residency laws by restricting access based on user roles and geographic location. CockroachDB’s RLS pairs with its Regional by Row tables to offer robust data placement and access control, making it an ideal solution for scalable, secure applications without necessitating significant changes to existing application logic.