Liquibase - Database schema change management and release automation solution.
RabbitMQ - RabbitMQ is an open source message broker software.
Flyway - Flyway is a database migration tool.
Ethereum - Ethereum is a decentralized platform for applications that run exactly as programmed without any chance of fraud, censorship or third-party interference.
Sqitch - Sqitch is a standalone database change management application without opinions about your database engine, development environment, or application framework.
Hyperledger - Hyperledger is a multi-project open source collaborative effort hosted by The Linux Foundation, created to advance cross-industry blockchain technologies.