A little more than a week after delivering Windows 10 Mobile preview build 10136, Microsoft has rolled out another new Windows 10 Mobile test build for Windows Phones.

The new build, 10149, is available to Windows Insiders on the Fast Ring, as of June 25.Today's new Windows 10 Mobile build is the first which includes the Microsoft Edge branding for the new browser that was formerly known as "Project Spartan."

Because the Edge app has a new app ID, testers will lose favorites, cookies, history and reading list items they saved in Spartan in previous preview builds to be lost.

The new build also includes a number of UX improvements and refinements; improvements to Cortana; a Flashlight quick action option; and an updated Photos app via the Windows Store beta.

Unlike Build 10136, today's build doesn't require those who want to get it to first go back to Windows Phone 8.1. Microsoft fixed that single-hop problem, and testers who either stayed on 10080 or who did go to 10136 can get the new test build.

Like Build 10136, the post-upgrade migration status screen is missing in the new build, which means testers might have to wait for up to 10 minutes to get the date/time lockscreen to appear after getting the new 10149 bits.

The Insider Hub is removed in the new build. But Microsoft officials said it will be back in future Insider Preview builds. Other known issues are listed in today's blog post about the new Windows 10 Mobile preview.

Windows 10 Mobile is expected to be released to manufacturing later this year. Rumor has it that it will be available on new phones and start to roll out to existing Windows Phone users later this fall.