Windows 8.1 build 9471 x64 got leaked on the web few days back and this new build has got several improvements over the past builds that got leaked.
We previously listed some of them here. Some of them are updated People hub with some new UI, updated Xbox Video app, apps now has hint to show users about availability of Apps bar, etc,. There are some more improvements spotted in the build.
- When you install Windows 8.1 RTM version from the Windows 8.1 preview, you will lose all the Metro/modern apps and desktop applications.
- Mail app has the ability to pin folders
- Calendar app has got new UI with “What’s next,” screen.
- Photos app now allows you to import photos from other devices.
- Skype app comes per-installed which replaces the old messaging app.
Source: Winsupersite