1 files changed, 54 insertions, 8 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 58f680a03f..209eb9cb95 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,10 +1,57 @@
-* `before_add` callbacks are fired before the record is saved on
-  `has_and_belongs_to_many` assocations *and* on `has_many :through`
-  associations.  Before this change, `before_add` callbacks would be fired
-  before the record was saved on `has_and_belongs_to_many` associations, but
-  *not* on `has_many :through` associations.
+*   Only use BINARY for mysql case sensitive uniqueness check when column has a case insensitive collation.
 
-  Fixes #14144
+    *Ryuta Kamizono*
+
+*   Support for Mysql 5.6 Fractional Seconds.
+
+    *arthurnn*, *Tatsuhiko Miyagawa*
+
+*   Support for Postgres `citext` data type enabling case-insensitive where
+    values without needing to wrap in UPPER/LOWER sql functions.
+
+    *Troy Kruthoff*, *Lachlan Sylvester*
+
+*   Only save has_one associations if record has changes.
+    Previously after save related callbacks, such as `#after_commit`, were triggered when the has_one
+    object did not get saved to the db.
+
+    *Alan Kennedy*
+
+*   Allow strings to specify the `#order` value.
+
+    Example:
+
+        Model.order(id: 'asc').to_sql == Model.order(id: :asc).to_sql
+
+    *Marcelo Casiraghi*, *Robin Dupret*
+
+*   Dynamically register PostgreSQL enum OIDs. This prevents "unknown OID"
+    warnings on enum columns.
+
+    *Dieter Komendera*
+
+*   `includes` is able to detect the right preloading strategy when string
+    joins are involved.
+
+    Fixes #14109.
+
+    *Aaron Patterson*, *Yves Senn*
+
+*   Fixed error with validation with enum fields for records where the
+    value for any enum attribute is always evaluated as 0 during
+    uniqueness validation.
+
+    Fixes #14172.
+
+    *Vilius Luneckas* *Ahmed AbouElhamayed*
+
+*   `before_add` callbacks are fired before the record is saved on
+    `has_and_belongs_to_many` assocations *and* on `has_many :through`
+    associations.  Before this change, `before_add` callbacks would be fired
+    before the record was saved on `has_and_belongs_to_many` associations, but
+    *not* on `has_many :through` associations.
+
+    Fixes #14144.
 
 *   Fixed STI classes not defining an attribute method if there is a
     conflicting private method defined on its ancestors.
@@ -13,8 +60,7 @@
 
     *Godfrey Chan*
 
-*   Coerce strings when reading attributes.
-    Fixes #10485.
+*   Coerce strings when reading attributes. Fixes #10485.
 
     Example: