Eppo Multiplatform: SDKs and Artifacts to support Flagging and Experimentation

Eppo is a modular flagging and experimentation analysis tool. Eppo's SDKs are built to make assignments in multi-user server-side and client-side contexts. Before proceeding you'll need an Eppo account.

Features

• Feature gates
• Kill switches
• Progressive rollouts
• A/B/n experiments
• Mutually exclusive experiments (Layers)
• Dynamic configuration
• Global holdouts
• Contextual multi-armed bandits

Contributing

Preparing your environment

1. Install rustup.
2. Install Ruby using your preferred package manager.

Release process

To release new versions:

1. Look up for a chore: bump versions before release pull request, review and merge it.
   • You must publish all bumped packages after merging the PR. If you don't want to publish some of the packages, you may add them to .changeset/config.json's ignore field temporarily.
2. If SDK depends on a new version of eppo_core, the core should be released first.
   • After a new version of eppo_core is published, Ruby SDK needs its lock file updated (see "Releasing" section in Ruby SDK readme).
3. Create a new releases for all bumped packages.
   • For tag, use one of the following formats (choose "create new tag on publish"):
     • [email protected]
     • [email protected]
     • [email protected]
     • [email protected]
   • Copy release notes from CHANGELOG.md file.
   • Publish release.
   • CI will automatically push a new release out to package registries.