https://www.neowin.net/news/windows-10-build-18298-shows-up-in-the-fast-ring-with-a-ton-of-changes

Microsoft released Windows 10 Insider Preview build 18298 to the Fast ring.  Today’s build contains a ton of new features. You can probably say that this is the ‘big bang’ build that we see once or twice in every development cycle. There’s nothing in there that’s particularly game-changing; however, the focus of 19H1 seems to be along the lines of improvements, rather than features.

1. Consolidating your sign-in options
2. File Explorer Improvements
3. Touch keyboard improvements
4. Console Updates
5. Notepad Updates
6. Narrator Improvements
7. Ease of Access Improvements
8. Updating the Windows 10 Setup experience
9. Windows Update Notifications
10. Snip & Sketch updates