What is the purpose of the CTRL+Y shortcut?

The purpose of the CTRL+Y shortcut is to redo the last action that was undone. This is particularly useful in various applications, such as word processors and graphic design software, where users may perform a series of actions and then decide to reverse the most recent ones. When an action is undone, it can be difficult to restore that work through manual effort alone. By pressing CTRL+Y, users can quickly and efficiently reinstate the last action that was removed, making it an essential tool for improving productivity and editing efficiency.

In many software applications, the redo function allows users to navigate back through their edit history after performing an undo action, effectively streamlining the process of adjusting or modifying content.