The next features update will be labeled officially as: Windows 10 version 20H2

Microsoft plans to use this first half (H1) and second half (H2) nomenclature for organizations getting the twice-per-year (spring/fall) Windows 10 feature updates. However, for consumers, Microsoft still plans to retain a more “friendly” name. For instance, the last Windows 10 feature update was called the “May 2020 Update,” and Microsoft expects to use that sort of descriptor for consumer Windows 10 users.
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Microsoft also reiterated a few details about the coming fall Windows 10 feature update, now known as Windows 10 version 20H2. For users of the Windows 10 May 2020 Update (version 2004), it’ll install quickly, like a monthly quality update, and apparently the installation will just involve one reboot to complete.