1 files changed, 78 insertions, 5 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 904ac5c26a..5b09101bca 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,74 @@
+*   Allow single table inheritance instantiation to work when storing
+    demodulized class names.
+
+    *Alex Robbin*
+
+*   Correctly pass MySQL options when using `structure_dump` or
+    `structure_load`.
+
+    Specifically, it fixes an issue when using SSL authentication.
+
+    *Alex Coomans*
+
+*   Dump indexes in `create_table` instead of `add_index`.
+
+    If the adapter supports indexes in `create_table`, generated SQL is
+    slightly more efficient.
+
+    *Ryuta Kamizono*
+
+*   Correctly dump `:options` on `create_table` for MySQL.
+
+    *Ryuta Kamizono*
+
+*   PostgreSQL: `:collation` support for string and text columns.
+
+    Example:
+
+        create_table :foos do |t|
+          t.string :string_en, collation: 'en_US.UTF-8'
+          t.text   :text_ja,   collation: 'ja_JP.UTF-8'
+        end
+
+    *Ryuta Kamizono*
+
+*   Make `unscope` aware of "less than" and "greater than" conditions.
+
+    *TAKAHASHI Kazuaki*
+
+*   `find_by` and `find_by!` raise `ArgumentError` when called without
+    arguments.
+
+    *Kohei Suzuki*
+
+*   Revert behavior of `db:schema:load` back to loading the full
+    environment. This ensures that initializers are run.
+
+    Fixes #19545.
+
+    *Yves Senn*
+
+*   Fix missing index when using `timestamps` with the `index` option.
+
+    The `index` option used with `timestamps` should be passed to both
+    `column` definitions for `created_at` and `updated_at` rather than just
+    the first.
+
+    *Paul Mucur*
+
+*   Rename `:class` to `:anonymous_class` in association options.
+
+    Fixes #19659.
+
+    *Andrew White*
+
+*   Autosave existing records on a has many through association when the parent
+    is new.
+
+    Fixes #19782.
+
+    *Sean Griffin*
+
 *   Fixed a bug where uniqueness validations would error on out of range values,
     even if an validation should have prevented it from hitting the database.
 
@@ -21,20 +92,22 @@
 
     *Mehmet Emin İNAÇ*
 
-*   Reduce memory usage from loading types on pg.
+*   Reduce memory usage from loading types on PostgreSQL.
 
     Fixes #19578.
 
     *Sean Griffin*
 
-*   Add `config.active_record.warn_on_records_fetched_greater_than` option
+*   Add `config.active_record.warn_on_records_fetched_greater_than` option.
 
     When set to an integer, a warning will be logged whenever a result set
-    larger than the specified size is returned by a query. Fixes #16463
+    larger than the specified size is returned by a query.
+
+    Fixes #16463.
 
     *Jason Nochlin*
 
-*   Ignore psqlrc when loading database structure.
+*   Ignore `.psqlrc` when loading database structure.
 
     *Jason Weathered*
 
@@ -706,7 +779,7 @@
 
     *Yves Senn*
 
-*   Fix bug with 'ActiveRecord::Type::Numeric' that caused negative values to
+*   Fix bug with `ActiveRecord::Type::Numeric` that caused negative values to
     be marked as having changed when set to the same negative value.
 
     Closes #18161.