Microsoft released a new Windows Insider Preview today, and while there weren't many new features, it does finally change the version number for Windows 10 Redstone 5 from 1803 to 1809.
Windows 10 November Update out for Release Preview, ISO also available
windows 10 21h2
Build 22000.282 fixes for Ryzen L3 cache performance issue, and more
windows 11 insider preview
Build 17741 RSS
Microsoft released Windows 10 Insider Preview build 17741 to the Fast ring today, and while it's light on features, there's a long list of fixes, improvements, and known issues to be aware of.
Microsoft today released its second Windows 10 Insider Preview build for Redstone 5 this week, bringing the build number to 17741. As you'd expect at this point, there isn't much in new features.