While we wait for Microsoft to release a new build of Windows 10 Mobile for members of the Windows Insider program, a site has posted what it says are leaked screenshots of a new version of the OS, with the build number 10534.
The images come from Poland-based Windowsmania.pl but the images show very little that's new in this build compared to earlier versions. The site does claim that build 10532 does run faster than the current Windows Insider version of build 10512. It also notes a new option for USB over ethernet, along with some SIM improvements.
Microsoft Windows Insider leader Gabriel Aul noted earlier this week that he was testing build 10532 but that doesn't mean this will be the version that will be offered to members of the Insider program, nor this new build with the leaked screenshots.