v2.9.1

This patch version includes various fixes. Huge thanks to contributors!

What's Changed

• refactor(core): follow naming convention by @dai-shi in #2662
• refactor(core): store with Object.assign by @dai-shi in #2663
• fix(core): atom toString includes debugLabel in dev mode by @dmaskasky in #2659
• fix(core): Unmount an atom that is no longer dependent within a derived atom by @nogaten in #2660
• fix(types): add undefined initial value to Atom definition by @rtritto in #2668

New Contributors

• @rtritto made their first contribution in #2668

Full Changelog: v2.9.0...v2.9.1