With the Dock on your Mac, you have quick access to frequently used apps, documents, and folders. It also makes it easy to switch to a running app. In macOS 10.14 Mojave, the Dock has another feature: a list of apps you’ve used recently that aren’t on your default Dock. Icons for these recent apps appear between your Dock’s default apps, on the left side of your Dock, and any documents or folders that you’ve added which are on the right—look closely and you’ll notice subtle lines in the Dock that delineate this area. The new Recent Apps area in the Dock holds at least three apps, but expands to hold as many launched apps (note the subtle dot under the icon) as necessary; as you quit apps, their icons disappear until you’re back down to three. If you don’t like this change, turn off “Show recent applications in Dock” in System Preferences > Dock.