Microsoft has begun work on the next big update for Windows 10 which will be deployed later this year, as opposed to the current preview 19H1 version which is due to be pushed out in the first half of the year as the name suggests (probably around April).
WZor (a source of many previous Windows leaks) on Twitter has revealed the existence of Windows 10 Build 18823 for 19H2, meaning the second half of the year.
