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kea v2.0.0 Release Notes

Release Date: 2020-05-12 // 20 days ago

  • 🔖 Version 2.0 brings a lot of convenience features and one breaking change. The changes are briefly described below. Read the announcement blog post to get more context: https://kea.js.org/blog/kea-2.0

    🔌 There's also a new babel plugin you might want to check out: https://github.com/keajs/babel-plugin-kea

    📄 Finally, Kea 2.0 comes with brand new docs on https://kea.js.org. 📄 (Old docs for 1.0 and 0.28)

    💥 Breaking change

    • 🔌 Listeners are now built in to Kea. That means if you were initialising the listenersPlugin before in resetContext, you need to remove it. Otherwise Kea won't start.

    Other changes

    • No more need to add the [actions. and ] in [actions.yourAction] when defining reducers and listeners
    • Auto-Connect: You can now write otherLogic.actions.doSomething() as keys for reducers and listeners and inside the executable part of listeners... instead of having to connect the values manually. The logic is automatically connected and mounted if it wasn't already.
    • It's possible to extend reducers with .extend. Before if you would define a new reducer with an existing name in the extend block, it would override the old one completely. Now thery merge and the actions on the old one still continue to work.
    • ✅ createStore is now true in resetContext. So if you don't need to specify the key at all if you don't have any custom redux middleware.
    • The path in your logic can start with anything. Previously it was just kea or scenes unless manually specified.
    • 0️⃣ Instead of passing an array [default, {..}] to a reducer, now passing an object {..} works and sets the default to null.

Previous changes from v1.0.0

  • 👀 There are too many changes to list here. See this document for a complete overview!