Update Changelog with the added response_format option in AD::DebugExceptions

actionpack/CHANGELOG.md

+*   Add a `response_format` option to `ActionDispatch::DebugExceptions`
+    to configure the format of the response when errors occur in
+    development mode.
+
+    If `response_format` is `:default` the debug info will be rendered
+    in an HTML page. In the other hand, if the provided value is `:api`
+    the debug info will be rendered in the original response format.
+
+    *Jorge Bejar*
+
 *   Change the `protect_from_forgery` prepend default to `false`
 
     Per this comment

railties/CHANGELOG.md

+*   `config.debug_exception_response_format` configures the format used
+    in responses when errors occur in development mode.
+
+    Set `config.debug_exception_response_format` to render an HTML page with
+    debug info (using the value `:default`) or render debug info preserving
+    the response format (using the value `:api`).
+
+    *Jorge Bejar*
+
 *   Fix setting exit status code for rake test tasks. The exit status code
     was not set when tests were fired with `rake`. Now, it is being set and it matches
     behavior of running tests via `rails` command (`rails test`), so no matter if