2 files changed, 30 insertions, 0 deletions
diff --git a/guides/source/5_2_release_notes.md b/guides/source/5_2_release_notes.md
index c5b914fffc..29b355119c 100644
--- a/guides/source/5_2_release_notes.md
+++ b/guides/source/5_2_release_notes.md
@@ -615,6 +615,10 @@ Please refer to the [Changelog][active-record] for detailed changes.
     the parent class was getting deleted when the child was not.
     ([Commit](https://github.com/rails/rails/commit/b0fc04aa3af338d5a90608bf37248668d59fc881))
 
+*   Idle database connections (previously just orphaned connections) are now
+    periodically reaped by the connection pool reaper.
+    ([Commit](https://github.com/rails/rails/pull/31221/commits/9027fafff6da932e6e64ddb828665f4b01fc8902))
+
 Active Model
 ------------
 
diff --git a/guides/source/active_record_querying.md b/guides/source/active_record_querying.md
index cb738f0657..270696d38d 100644
--- a/guides/source/active_record_querying.md
+++ b/guides/source/active_record_querying.md
@@ -807,6 +807,32 @@ SELECT * FROM articles WHERE id > 10 ORDER BY id DESC LIMIT 20
 
 ```
 
+### `reselect`
+
+The `reselect` method overrides an existing select statement. For example:
+
+```ruby
+Post.select(:title, :body).reselect(:created_at)
+```
+
+The SQL that would be executed:
+
+```sql
+SELECT `posts.created_at` FROM `posts`
+```
+
+In case the `reselect` clause is not used,
+
+```ruby
+Post.select(:title, :body)
+```
+
+the SQL executed would be:
+
+```sql
+SELECT `posts.title`, `posts.body` FROM `posts`
+```
+
 ### `reorder`
 
 The `reorder` method overrides the default scope order. For example: