Question: Is Redis open source?


Redis, a popular in-memory data store, has recently transitioned away from its traditional open-source BSD license to a more restrictive Server Side Public License (SSPL). This change marks a significant shift in the licensing of Redis, indicating that it is no longer open source by the conventional definition, which typically allows for the use, modification, and redistribution of software without significant restrictions.

The move to adopt SSPL was driven by Redis Labs, the company behind Redis, to prevent large cloud providers from offering Redis as a service without entering into commercial agreements. This licensing shift has led to notable consequences in the developer community, including the creation of a fork named Valkey. You can learn more about Valkey here

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Dragonfly is fully compatible with the Redis ecosystem and requires no code changes to implement.