Windows 10 build 14977 rolls out for mobile

Microsoft delivers a new test preview of Windows 10 Mobile (build 14977), but with only minor improvements and one new feature.

Windows 10 Mobile Anniverary Update (Lumia 950)

Microsoft is now pushing Windows 10 build 14977 for phones enrolled in the Fast ring. It’s been a few weeks since members of the Windows Insider Program received an update for phones, but now the software giant in releasing another test preview part of the Creators Update.

Windows 10 Mobile build 14977, according to the company, updates Microsoft Edge on your phone to read epub files, just like Microsoft included on build 14971 for PC.

Starting with this flight, you can read unprotected epub file formats. You can customize the experience with three different themes, including light, sepia, and dark, and you can also change the font and text size. You can also navigate the file using the tablet of content, and you can even set bookmarks, and research a word using Cortana.

Microsoft Edge epub support Windows 10 Mobile build 14977
Microsoft Edge epub support

In addition, Windows 10 Mobile build 14977 ships with a number of improvements, changes, and fixes. For example, Notifications can now be customized on Settings > System > Notifications > Settings, and Windows 10 for mobile now adds support for OAuth for Yahoo Mail account to improve sync.

Microsoft is listing the complete set of the features, fixes, and known issues for build 14977 at the Windows Blog.

You can also use the following resources:

Windows 10 build 14977 is available immediately through the Fast ring. It’ll download and install automatically on your mobile device, but you can always force the update from Settings > Update & security > Windows Update and clicking the Check for updates button.

About the author

Mauro Huculak is a Windows How-To Expert who started Pureinfotech in 2010 as an independent online publication. He has also been a Windows Central contributor for nearly a decade. Mauro has over 14 years of experience writing comprehensive guides and creating professional videos about Windows and software, including Android and Linux. Before becoming a technology writer, he was an IT administrator for seven years. In total, Mauro has over 20 years of combined experience in technology. Throughout his career, he achieved different professional certifications from Microsoft (MSCA), Cisco (CCNP), VMware (VCP), and CompTIA (A+ and Network+), and he has been recognized as a Microsoft MVP for many years. You can follow him on X (Twitter), YouTube, LinkedIn and