Not much to say other than what’s new about the 1850 and 1860 census at Ancestry.com?
They’ve been on the site for years–complete images and complete index.
What’s really new? Is it something new enough that I should search again for that Benjamin Butler that I cannot find? Do I need to repeat all those searches I did for him with all those different search options?
Were the images enhanced with no change to the index?
There’s just no way of knowing what’s different about it. That doesn’t help me to know whether I should revisit it for my missing people or not.