1 files changed, 71 insertions, 3 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index be3a461eda..b6a943eca7 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,11 +1,79 @@
-*   Add `config.active_record.warn_on_records_fetched_greater_than` option
+*   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.
+
+    *Andrey Voronkov*
+
+*   MySQL: `:charset` and `:collation` support for string and text columns.
+
+    Example:
+
+        create_table :foos do |t|
+          t.string :string_utf8_bin, charset: 'utf8', collation: 'utf8_bin'
+          t.text   :text_ascii,      charset: 'ascii'
+        end
+
+    *Ryuta Kamizono*
+
+*   Foreign key related methods in the migration DSL respect
+    `ActiveRecord::Base.pluralize_table_names = false`.
+
+    Fixes #19643.
+
+    *Mehmet Emin İNAÇ*
+
+*   Reduce memory usage from loading types on PostgreSQL.
+
+    Fixes #19578.
+
+    *Sean Griffin*
+
+*   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*