Mention PR #6412 in CHANGELOG.md.

CHANGELOG.md

@@ -59,9 +59,11 @@
 - `InMemoryCache` now supports tracing garbage collection and eviction. Note that the signature of the `evict` method has been simplified in a potentially backwards-incompatible way. <br/>
   [@benjamn](https://github.com/benjamn) in [#5310](https://github.com/apollographql/apollo-client/pull/5310)
 
-- **[beta-BREAKING]** Please note that the `cache.evict` method now requires `Cache.EvictOptions`, though it previously supported positional arguments as well. <br/>
-  [@danReynolds](https://github.com/danReynolds) in [#6141](https://github.com/apollographql/apollo-client/pull/6141)
-  [@benjamn](https://github.com/benjamn) in [#6364](https://github.com/apollographql/apollo-client/pull/6364)
+  - **[beta-BREAKING]** Please note that the `cache.evict` method now requires `Cache.EvictOptions`, though it previously supported positional arguments as well. <br/>
+    [@danReynolds](https://github.com/danReynolds) in [#6141](https://github.com/apollographql/apollo-client/pull/6141)
+    [@benjamn](https://github.com/benjamn) in [#6364](https://github.com/apollographql/apollo-client/pull/6364)
+
+  - Removing an entity object using the `cache.evict` method does not automatically remove dangling references to that entity elsewhere in the cache, since the appropriate removal behavior is inherently application-dependent. Instead, you should define a custom field `read` function for the affected fields. See [#6412](https://github.com/apollographql/apollo-client/pull/6412) for further explanation.
 
 - Cache methods that would normally trigger a broadcast, like `cache.evict`, `cache.writeQuery`, and `cache.writeFragment`, can now be called with a named options object, which supports a `broadcast: boolean` property that can be used to silence the broadcast, for situations where you want to update the cache multiple times without triggering a broadcast each time. <br/>
   [@benjamn](https://github.com/benjamn) in [#6288](https://github.com/apollographql/apollo-client/pull/6288)