I have a old Drupal 7 installation and I would like to update my Drupal 7 to the latest release, but I know for a fact that some of my custom module will break on the latest update.
All I want installed is the security patches up to the latest Drupal 7. How can this be done or is it even possible without much effort? Also where and how can I view what is being patched during an update of Drupal 7 core?