How to find out which new permissions are required by an update? When updating an app that requires new permissions, those new permissions used to be labelled with a green NEW tag. No more. Now I can only see the full list of permissions required. I'm still prompted to confirm the change, but I can't save time by only looking at the new ones.

Without manually keeping track of the old permissions and other impractical ideas, is there a workaround? A way to see what changed before I install the update?
On the app details page, you can scroll to the bottom of the page. You will find a link under PERMISSIONS saying "View details". That will open a popup page that will display all the permission categories with expanded view and list all the permissions the app needs, including the new ones required with "NEW" tag.