Clicking on Advanced View UI action on a dictionary entry will update the dictionary entry and insert a new version.DescriptionClicking on Advanced View UI action on a dictionary entry will update the dictionary entry and insert a new version. - This is intentionally implemented in the UI action, via a current.update() call on the script of the UI action, and is meant to save the current form before switching to advanced view. - To switch to advanced view without saving, use the top left menu icon to switch between views, and not the UI actions at the bottom of the form. Steps to Reproduce - Navigate to sys_dictionary.LIST - Open any dictionary record - Scroll to the bottom of the form and click on the UI action "Advanced View". - Navigate to sys_update_xml.LIST - Note there is a new customization containing the dictionary record that was just viewed.WorkaroundThe changes can be reverted to the previous version from sys_update_version table. If reverting to a base system version, also ensure that the sys_update_xml entry has replace_on_upgrade=true Related Problem: PRB906444