Windows 10 Mobile is just around the corner for Windows Phone devices and rumor has it that the company could ship the first wave of upgrades as soon as tomorrow.
So today, the software giant pushed a mandatory update for the Windows Insider app which indeed suggests that the official release of the new OS is imminent.
The Windows Insider app version has been bumped from 184.108.40.206 to 220.127.116.11 and although the change might not seem significant, it's very important for two different reasons.
First of all, it's mandatory, so when you launch the Windows Insider app on a phone without updating it, you are automatically prompted to download and install the new version.
Second of all, it's likely an update that will configure insiders' devices to switch to the rs1_release branch, which is actually the one testing Windows 10 Redstone builds. The change has already been made on Windows 10 PCs enrolled in the Windows Insider program after the November Update officially launched, so this switch could suggest that Windows 10 Mobile is ready for the public debut.