As this user perfectly stated:
"Latest change where you moved the completed tasks to always be separated also broke sorting the completed tasks. Now it acts like the old Wunderlist. So for example, if I want to un-check just a few specific shopping list items from a long list, it's very hard to find them.
This was actually one of the best improvements in To-do and now it's gone. "
I'm also very disappointed I now can't sort the completed items. I find it hard to believe this was not considered prior to the update, and I would think more than a few users have TO DO grocery lists.
My grocery list has over 100 completed items that I uncheck as those items are needed and now I'm searching/scanning for them. If I had a single list instead of one each for Walmart, Kroger, and Costco, it would be extremely long and totally unmanageable without the ability to sort completed items.
Since I assume there is no going back to the undivided list, please add a sort functionality to the completed list.
Thanks!