https://www.bleepingcomputer.com/news/microsoft/windows-10-build-17744-released-with-bug-fixes-and-improvements/

Microsoft has released a new Windows 10 preview build 17744 (Redstone 5) for Insiders enrolled in the Fast ring and the latest preview update comes with no new features or major changes as the development is nearing the stabilization phase.

There are only general fixes and improvements as the software maker is now focused on squashing bugs and less on new features. Microsoft has addressed an issue that resulted in Cortana crashing when launching tips and doing web searches. There are also several other improvements and fixes that you can find below: