v2.0.0

Version 2.0 represents a total refactor, with a new context-based approach which should make this library more flexible, more maintainable and more comprehensively testable.

As this is a major release, users should expect some breaking changes - though they should be limited to the removal of the activeItems prop (read more below).

Added

• Exports resetNextId (#41).

Fixed

• Defect where controlled components' props were overridden by React.Children.map (#33).
• Defect where accordion crashed with unexpected children types (#45).
• Defect where React Accessible Accordion's components could not be extended.
• Defect where the children of Accordion or AccordionItem could not be arbitrary.
• Defect where AccordionItem had to be a child of Accordion (as opposed to to an arbitrary-level descendant).
• Defect where AccordionItemBody and AccordionItemTitle had to be children of AccordionItem (as opposed to arbitrary-level descendants).

Removed:

• 🚨 Breaking change 🚨 activeItems property is no longer supported.

Control at the Accordion level (via the activeItems prop) and AccordionItem level (via the expanded prop) fought against one another, and choosing which control mechanism to give preference to would have been an arbitrary decision - and whichever way we went, we would have had test cases which demonstrated unusual/unpredictable behaviour. The activeItems mechanism was the obvious one to remove - it was arguably the "less React-y way", and we considered it more of a convenience than a feature. Crucially though, it fought too hard against the new architecture of the library, and keeping it would have prevented us enabling lots of other new features or resolving some of the issues that our users had raised.

If you're currently using activeItems, you're upgrade path might look like this:

const items = ['Foo', 'Bar'];
const activeItems = [0];

return (
-    <Accordion activeItems={activeItems} />
+    <Accordion />
        {activeItems.forEach((item, i) => (
-            <AccordionItem key={item}>{item}</AccordionItem>
+            <AccordionItem key={item} expanded={activeItems.includes(i)}>{item}</AccordionItem>
        )}
    </Accordion>
);

Please don't hesitate to reach out to one of the maintainers (or raise an issue) if you're having trouble upgrading - we're happy to help!