Add changelog entry

Author: colinrotherham

CHANGELOG.md

@@ -1,5 +1,11 @@
 # NHS.UK React components
 
+## Unreleased
+
+This version adds the panel component from NHS.UK frontend v9.3.0 and supports React v19.
+
+For a full list of changes in this release please refer to the [migration doc](https://github.com/NHSDigital/nhsuk-react-components/blob/main/docs/upgrade-to-6.0.md).
+
 ## 6.0.0-beta.0 - 30 September 2025
 
 This version provides support for nhsuk-frontend version 10.

docs/upgrade-to-6.0.md

@@ -18,6 +18,19 @@ The updated [header](https://service-manual.nhs.uk/design-system/components/head
 - update NHS logo in the header to have higher contrast when focused
 - refactor CSS classes and BEM naming, use hidden attributes instead of modifier classes, use generic search element
 
+### Panel component
+
+The [panel](https://service-manual.nhs.uk/design-system/components/panel) component from NHS.UK frontend v9.3.0 has been added:
+
+```jsx
+<Panel>
+  <Panel.Title>Booking complete</Panel.Title>
+  We have sent you a confirmation email
+</Panel>
+```
+
+This replaces the [list panel component](#list-panel) which was removed in NHS.UK frontend v6.0.0.
+
 ## Breaking changes
 
 ### Update the JavaScript supported script snippet