Changed Autoload to use Module#Autoload in AS::Dependencies

activesupport/CHANGELOG.md

@@ -1,3 +1,19 @@
+*   `ActiveSupport::Dependencies` now uses `Module#autoload` for autoloading
+
+    Autoloading no longer depends on the old const_missing hook. Instead
+    they are done through installing autoloads for modules that load
+    (temporary) intermediate files. The intermediate files handle the structure
+    necessary to load nested modules and modules across multiple files.
+
+    Currently, no initializer is hooked up to the actual Rails project, but
+    the entry point to load the modules is `AS:Dep#autoload_modules`.
+
+    In the test suite, some tests are suite that are skipped. Many of these
+    were deemed "NOT SUPPORTED", but there are some tests that do not pass
+    and should work in a final implementation.
+
+    *Terence Sun*, *Michael Probber*, *Yasyf Mohamedali*
+
 *   Encoding ActiveSupport::TimeWithZone to YAML now preserves the timezone information.
 
     Fixes #9183.