Windows 10
The next Windows 10 Mobile build will have Windows Feedback app. Reuters

With new features and bug fixes, the latest Windows 10 developer preview build 10532 is now available for those who are part of the Windows Insiders Program on Fast ring. Updating this build, you should see improvements over the previous build 10525.

Based on the feedback from Insiders, this build brings enhancements to the context menus. Microsoft has unified the light and dark theming across the operating system. The language packs are also available for supported languages in the Insider Program.

Windows 10 context menus
Improved context menus in Windows 10 build 10532. Windows Blog

Further, the Windows Feedback app now allows sharing feedback with other Insiders on Twitter, Insider forum discussions and with Microsoft engineers. You can share using any app that supports Windows Share functionality or, get a direct link copied to your clipboard and paste it wherever you like.

The future Windows 10 Mobile release will also contain this Windows Feedback app, as it is a Universal Windows Platform app. Microsoft says it has squashed a few bugs in the mobile build and the next releases will incorporate them.

There are a couple of caveats which Microsoft still needs to fix. The Windows Hello face sign-off does not work on this build. However, you can use other methods like, Pin, Password or fingerprint to unlock your device.

Google has acknowledged the 64-bit Google chrome crashing issues on launch. Until the official fix arrives, you can use the Canary build or 32-bit Chrome on this build.