deepin 15.4 Release Candidate is an important milestone in the development cycle of the Linux-based operating system, and it looks like many of the things users suggested from the Beta release have been implemented, along with lots of bugs fixes for the desktop, Control Center, launcher, dock, window manager, and other components. Lots of bugs have been squashed, and the interaction and UI details of the window manager were improved in deepin 15.4 Release Candidate, which comes with a Wubi installer that lets Windows users install the operating system from within a Windows 7 or later OS, though you’ll need to disable the fast startup functionality.