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A version of Windows 10 Mobile based on the Redstone 3 codebase was initially planned to be released following the Creators Update. It would have included drastic overhauls to the Continuum feature set in an attempt to provide feature parity with desktop releases of Windows 10, such as overlapped windowing support, independent per-mode Start menu layouts, system tray and Action Center functionality in the taskbar, and further general improvements to the overall user experience.

Problems encountered during development led to the creation and release of a stopgap release based on a direct fork of the Creators Update. It was eventually cancelled due to a reallocation of resources towards the Windows Core OS project. (Full article...)

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