I just ran across this information and thought I would pass it on:
Issue Identified in Drupal 7.29 Security Upgrade
An issue with potential data loss when upgrading to Drupal 7.29 has been identified and posted on Drupal.org. For more information, please see "Regression: Files or images attached to taxonomy terms (and other entities?) are lost when the term is edited and saved.”
We urge customers to review the issue as posted, assess their Drupal configuration for related vulnerabilities, and test appropriately when upgrading to Drupal 7.29 to avoid unintended consequences.