Microsoft has released Windows 10 Mobile Build 15222 to Windows Insiders in the Fast Ring. Windows 10 Mobile Build 15222 is from feature_2 branch and there are no new features or major improvements. However, Microsoft has fixed numerous bugs with this release.
Microsoft has finally fixed the copyright date bug and now it is showing 2017 in Settings > System > About. Furthermore, an issue where WhatsApp would not launch has been fixed with this release. Microsoft has fixed an issue where the notifications and Cortana’s cross-devices settings on your device were not being mirrored to your PC.
Microsoft has improved the reliability of notifications for apps with a paired Bluetooth device. Furthermore, the Time & Language settings page has been improved. Now it would show “Downloading” for speech and “Installing” for keyboard.
There are no new features in this build. However, Windows 10 Redstone 3 Builds for Phones will contain major improvements. Recently, a leaked video has revealed the changes coming to Windows 10 Mobile.