This module can help you: http://drupal.org/project/upgrade_status, it has a very useful submodule 'upgrade_assist".
Details from its project page:
The Upgrade Status module checks the list of projects you have installed and shows their availability for the new version of Drupal core, which can be one of the following:
- Available: A stable release of this project is available.
- In development: A development release of this project is available, which can be installed for testing purposes.
- Not ported yet: There are no releases available for this project.
Clicking on any of the modules' boxes will show you notes about upgrading the project, as well as a link to download the new version.
