Microsoft released a new cumulative information for her Windows 10 versions 2004 or later systems.
The update is available through Windows Update and Microsoft Windows Update for Business. In addition, Microsoft also published links for KB5006670 offline installers.
KB5006670 is a big update released via 'Patch Tuesday' and fixes quite a few issues according to the company but you never know.
If you have already upgraded to version 21H2 through the Release Preview channel, after the installation you will have a new build number (Windows 10 Build 19044.1288). Those still using last year's fall update (version 20H2), after installation you will have a new build number (Windows 10 Build 19042.1288) with the same bug fixes and improvements.
If you check for updates today, you will see the following update:
2021-10 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5006670)
Download Links for KB5006670
Windows 10 KB5006670 Direct Download Links: 64-bit and 32-bit (x86).
Windows 10 KB5006670 (Build 19044.1288) Changelog