https://wccftech.com/microsoft-windows-10-build-improved-raw-file-format-support/ > Microsoft has released a brand new build from the upcoming Windows 10 version 1903. Today’s Preview Build is now available to the Fast ring insiders. The Windows maker said that the Preview Build 18323 may not be available immediately to everyone due to some issue with the publishing system. > Here is everything that is new with Windows 10 Insider Preview Build 18323: