Mention PR #8785 in CHANGELOG.md.

CHANGELOG.md

@@ -1,6 +1,9 @@
 ## Apollo Client 3.6.0 (not yet released)
 
-- TODO
+### Improvements
+
+- Tentatively reimplement `useQuery` and `useLazyQuery` to use the [proposed `useSyncExternalStore` API](https://github.com/reactwg/react-18/discussions/86) from React 18. <br/>
+  [@brainkim](https://github.com/brainkim) in [#8785](https://github.com/apollographql/apollo-client/pull/8785)
 
 ## Apollo Client 3.5.3 (not yet released)
 
@@ -12,8 +15,8 @@
 
 ## Apollo Client 3.5.2 (2021-11-10)
 
-- Fix useMutation execute function returning non-identical execution functions when passing similar options. <br/>
-  [@brainkim](https://github.com/brainkim) in [#9093](https://github.com/apollographql/apollo-client/pull/9037)
+- Fix `useMutation` execute function returning non-identical execution functions when passing similar options. <br/>
+  [@brainkim](https://github.com/brainkim) in [#9037](https://github.com/apollographql/apollo-client/pull/9037)
 
 ## Apollo Client 3.5.1 (2021-11-09)