Nokia has published a number of software updates for Asha and other Series 40 over the past couple of weeks. The device models include Asha 200, Asha 201, Asha 300, Asha 303, Asha 311, C2-02, C2-03, C3-01, X2-02 and X3-02. These updates feature various usability and performance improvements, as well other fixes. For more information about the update, go to http://www.nokia.com/support and select your device model.
The recommended update method for the mentioned devices is to use Nokia Suite, but many of the updates are also available as a FOTA (Firmware Over-The-Air) update. You can refer to this video to learn how to update using Nokia Suite.
As usual with such updates, there may be some regional or country based differences in the availability of these updates. Enjoy!