The Walls Came Down

There's only one version, and it's free. Every tool, every platform, every feature. No trial limits. No org-size cap. No revenue restriction. Use it personally, use it commercially, use it in production. SSCL v2.0 grants the right to all of that. Public source on GitHub .

Flyway and Liquibase are change-based: you write and maintain a sequence of migration scripts that assume a specific starting state. SchemaSmith is state-based: you define the desired end state, and SchemaQuench generates the migration at deployment time by comparing that target to what's actually in the database. No more memorizing every environment's current shape to write the "next" script.

SQL Server 2016+ (compatibility level 130+), PostgreSQL 15+, and MySQL 8.0+. All three are first-class — same three tools, same workflow. Self-contained binaries for Windows, Linux, and macOS. No .NET runtime to install.

Yes. SchemaSmith tools are CLI-based and run anywhere — Jenkins, GitHub Actions, GitLab CI, Azure DevOps, or any pipeline that can execute a command. See our CI/CD Integration guide for examples.

Deploy the previous release's metadata — SchemaQuench handles the rest. No pre-written rollback scripts needed. See our Rollback & Recovery guide for details.