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.
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.