Liquibase provides database schema change management with changelog-based tracking and rollback capabilities. Open Source free (Apache 2.0); Pro at $3,600+/year adds quality checks, secrets management, and parallel changes. The tool uses XML, YAML, JSON, or SQL changelogs to define database changes with automatic tracking of applied changesets. Differentiator vs Flyway: database-agnostic changelog format enables same changelog across different database types. Features include automatic rollback generation, diff commands for comparing databases, quality checks (Pro) for enforcing standards, and Liquibase Hub for visibility. Supports 50+ databases. Integration with Maven, Gradle, Spring Boot, and CI/CD tools. Pro features include targeted rollback (specific changesets), flow files for multi-step operations, and policy enforcement. No AI features—focuses on DevOps automation and governance. Page should cover: changelog format comparison (XML vs YAML vs SQL), Open Source vs Pro feature matrix, diff and snapshot capabilities, comparison with Flyway, rollback strategies, and CI/CD integration patterns.