1 files changed, 66 insertions, 0 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 5f273d53f2..0841b2f679 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,65 @@
+*   Uniqueness validator raises descriptive error when running on a persisted
+    record without primary key.
+
+    Closes #21304.
+
+    *Yves Senn*
+
+*   Add a native JSON data type support in MySQL.
+
+    Example:
+
+        create_table :json_data_type do |t|
+          t.json :settings
+        end
+
+    *Ryuta Kamizono*
+
+*   Descriptive error message when fixtures contain a missing column.
+
+    Closes #21201.
+
+    *Yves Senn*
+
+*   `ActiveRecord::Tasks::PostgreSQLDatabaseTasks` fail if shellout to
+    postgresql commands (like `pg_dump`) is not successful.
+
+    *Bryan Paxton*, *Nate Berkopec*
+
+*   Add `ActiveRecord::Relation#in_batches` to work with records and relations
+    in batches.
+
+    Available options are `of` (batch size), `load`, `begin_at`, and `end_at`.
+
+    Examples:
+
+        Person.in_batches.each_record(&:party_all_night!)
+        Person.in_batches.update_all(awesome: true)
+        Person.in_batches.delete_all
+        Person.in_batches.each do |relation|
+          relation.delete_all
+          sleep 10 # Throttles the delete queries
+        end
+
+    Closes #20933.
+
+    *Sina Siadat*
+
+*   Added methods for PostgreSQL geometric data types to use in migrations
+
+    Example:
+
+        create_table :foo do |t|
+          t.line :foo_line
+          t.lseg :foo_lseg
+          t.box :foo_box
+          t.path :foo_path
+          t.polygon :foo_polygon
+          t.circle :foo_circle
+        end
+
+    *Mehmet Emin İNAÇ*
+
 *   Add `cache_key` to ActiveRecord::Relation.
 
     Example:
@@ -311,6 +373,10 @@
 
     *Ryuta Kamizono*
 
+*   Remove `ActiveRecord::Serialization::XmlSerializer` from core.
+
+    *Zachary Scott*
+
 *   Make `unscope` aware of "less than" and "greater than" conditions.
 
     *TAKAHASHI Kazuaki*