Clean up and correct documentation for update_columns and update_all [ci skip]

2 files changed, 3 insertions, 3 deletions

diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb
index 46c6d8c293..1cb177483a 100644
--- a/activerecord/lib/active_record/persistence.rb
+++ b/activerecord/lib/active_record/persistence.rb
@@ -298,6 +298,7 @@ module ActiveRecord
     # * \Validations are skipped.
     # * \Callbacks are skipped.
     # * +updated_at+/+updated_on+ are not updated.
+    # * However, attributes are serialized with the same rules as ActiveRecord::Relation#update_all
     #
     # This method raises an ActiveRecord::ActiveRecordError when called on new
     # objects, or when at least one of the attributes is marked as readonly.
diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb
index f100476374..2cf19c76c5 100644
--- a/activerecord/lib/active_record/relation.rb
+++ b/activerecord/lib/active_record/relation.rb
@@ -347,9 +347,8 @@ module ActiveRecord
 
     # Updates all records in the current relation with details given. This method constructs a single SQL UPDATE
     # statement and sends it straight to the database. It does not instantiate the involved models and it does not
-    # trigger Active Record callbacks or validations. Values passed to #update_all will not go through
-    # Active Record's type-casting behavior. It should receive only values that can be passed as-is to the SQL
-    # database.
+    # trigger Active Record callbacks or validations. However, values passed to #update_all will still go through
+    # Active Record's normal type casting and serialization.
     #
     # ==== Parameters
     #