Automatic upgrade

I found this plugin:
http://ww.wp.xz.cn/extend/plugins/wordpress-automatic-upgrade/.

But it is compatible up to version 2.3.1 of WordPress.

Do you think it will work with version 2.3.2? When they release a new version of the plugin?
Does exist anyother similar or better plugin?

Thank you in advance for your reply and sorry for my english.