https://www.bleepingcomputer.com/news/microsoft/windows-10-insider-build-17735-released-with-bug-fixes/ > Today Microsoft released Windows 10 Insider Preview Build 17735 (Redstone 5) to Insiders on the Fast Ring. This build does not contain any new features and appears to be just a bug fix build as Microsoft gets the upcoming Redstone 5 feature update ready to be released.