Make sure you saved your return as a pdf file after you file and before you do any new future updates. Then you can compare your return with the updates to your filed return. I would save your filed return pdf with another name so it doesn't get overwritten like add FINAL to the name.
In Windows you can change the auto update setting for it to ask you before updating. I always change the settings right after I install the program. Go up to Online-Updater Preferences and select Ask me before getting updates.
