We’re rolling out Build 10512 of the Windows 10 Mobile Insider Preview right now to Windows Insiders on the Fast ring. Thanks for your patience waiting for this one, the team was very focused on our Windows 10 release for PCs and tablets, and we needed to do some prep work for Mobile to move to a new branch. I expect the builds to be out more frequently again as we go forward from here. Our major focus on Windows 10 Mobile right now is on improvements to core quality.

We’ve made quite a few improvements since the last build, but here are a few things that we fixed that were frequently reported by Insiders:

• General improvement in overall stability and performance.
• You can now set the Lock screen and background image from within the Photos app.
• We fixed an issue where apps installed on SD cards weren’t working after a reboot.
• We have improved Latvian and Chinese inputs.
• We have made improvements to the Kid’s Corner tile layout.
• We have improved reliability of Data Sense notifications.
• Modified Shape Writing algorithm to be less aggressive in suggesting contact names over common words.
• Resolved an issue where Camera would not launch when the phone was locked.
• We fixed an issue where notifications for incoming text messages weren’t appearing.
• We fixed an issue where the touch screen wouldn’t be responsive after ending a phone call on some devices.
• And we fixed an issue where folder tiles have obviously overlapping text.