React 16.3.2 Support is here!

NO BREAKING CHANGES. Formik still supports React v15+

What's new? 🍾 🎉

• React 16.3.2 support 💯
• No more dependency on prop-types or @types/prop-types for those using 16.3.2+. Earlier versions are polyfilled thanks to create-react-context
• TypeScript 2.8.3
• Exported CommonJS build development version (kind of like React does) with warnings
• **New primitives (for advanced users) that want to hook into Formik context directly:
  • <FormikConsumer> this is a render prop that exposes Formik's context
  • connect() an Higher order component that wraps <FormikConsumer>

I am purposefully not documenting the new context helpers, because there shouldn't be any backwards compat issues due to the fact that create-react-context uses prop-types under the hood in versions less than 16.

Roadmap 🔭 🚀

• Fix isSubmitting
• Finish the website and release 1.0
• Rewrite the docs and tutorial
• State reducer / middleware
• TS 2.9 will support JSX Generics. TBD if this should be a breaking change or not, but basically we'll be able to do <Formik<Values> render={props => }/> and <Field<Values> name="..." />. Very very exciting.
• Move to a Monorepo and build React Native <Field>
• Consolidate <FastField> into <Field>, and then deprecate <FastField>.
• Consider removing form and field from Formik's <Field render> and just pass through props now that FormikConsumer exists. More discussion on this.

Commits (that matter)

• #594 React 16.3