All the fixes and improvements that are released through these preview releases are packaged with next month’s mandatory Patch Tuesday updates for Windows. Today’s optional updates are available for Windows 10 21H2, 21H2, and 20H2. KB5011543 (Builds 19042.1620 for v20H2, Build 19043.1620 for v21H1, and Build 19044.1620 for v21H2) introduces Search highlights (something from Windows 11. released earlier for Insiders), along with several other improvements.
Release notes for Windows 10 KB5011543 Preview
Today’s Windows 10 update is available via Windows Update or Microsoft Update and Microsoft Update Catalog. For more details, check this support document. Search highlights will roll out to Windows 10 customers over the next several weeks. We are taking a phased and measured approach. Broad availability will occur in the coming months. For more information, see Group configuration: search highlights in Windows.