Update changeset

.changeset/pretty-planets-cough.md

@@ -2,7 +2,9 @@
 "@apollo/client": minor
 ---
 
-Provide a more type-safe option for `observableQuery.updateQuery` which types the value of previous data incorrectly which could result in crashes at runtime. The `updateQuery` callback function is now called with a new type-safe `previousData` property and a `complete` property in the 2nd argument that determines whether `previousData` is a complete or partial result.
+Provide a more type-safe option for the previous data value passed to `observableQuery.updateQuery`. Using it could result in crashes at runtime as this callback could be called with partial data even though its type reported the value as a complete result.
+
+The `updateQuery` callback function is now called with a new type-safe `previousData` property and a new `complete` property in the 2nd argument that determines whether `previousData` is a complete or partial result.
 
 As a result of this change, it is recommended to use the `previousData` property passed to the 2nd argument of the callback rather than using the previous data value from the first argument since that value is not type-safe. The first argument is now deprecated and will be removed in a future version of Apollo Client.