MONGOID-5340 revise language

Author: p

source/release-notes/mongoid-7.0.txt

@@ -43,11 +43,11 @@ New in version 7.0.5: Mongoid now officially supports Rails 6.0.
 ``set`` Overwrites Complete Document
 ------------------------------------
 
-**Breaking change:** In Mongoid 7.0.2 and higher, ``set`` writes
-the provided attributes as the complete document (or sub-document), replacing
-any other attributes stored in the database. This behavior matches that of
-MongoDB ``$set`` operator. In Mongoid 7.0.1 and lower, ``set`` retained other
-attributes present in the database below the document being written:
+**Breaking change:** In Mongoid 7.0.2 and higher, ``set`` fully overwrites
+the targeted attributes in the database, including any nested documents
+and nested attributes. This behavior matches that of MongoDB ``$set`` operator.
+In Mongoid 7.0.1 and lower, ``set`` retained other attributes present in the
+database below the document being written:
 
 .. code-block:: ruby
 

source/release-notes/mongoid-7.1.txt

@@ -257,11 +257,11 @@ example, the following two approaches result in the same generated selector:
 ``set`` Overwrites Complete Document
 ------------------------------------
 
-**Breaking change:** In Mongoid 7.1 (and 7.0.2 and higher), ``set`` writes
-the provided attributes as the complete document (or sub-document), replacing
-any other attributes stored in the database. This behavior matches that of
-MongoDB ``$set`` operator. In Mongoid 7.0.1 and lower, ``set`` retained other
-attributes present in the database below the document being written:
+**Breaking change:** In Mongoid 7.1 (and 7.0.2 and higher), ``set`` fully
+overwrites the targeted attributes in the database, including any nested
+documents and nested attributes. This behavior matches that of MongoDB ``$set``
+operator. In Mongoid 7.0.1 and lower, ``set`` retained other attributes present
+in the database below the document being written:
 
 .. code-block:: ruby