A search bar now sits in the admin top bar. Type anything — an order number, a customer name, a product, a settings page — and jump straight to it without clicking through menus.
Especially useful when your catalogue grows past a couple of pages, when you're looking up a specific past order, or when you can't remember which settings tab a particular toggle lives on.
No setup. Open the admin and start typing in the search box at the top. Click a result to go straight there.