Microsoft last pushed Windows 10 Mobile Build 10586.420 to everyone running official Windows 10 Mobile update We also reported one new TH2 build, Build 10586.446 leaking in a hands-on video and appearing on BuildFeed. Now a new Windows 10 / Windows 10 Mobile TH2 Build 10586.456 under internal testing has shown up.
Build 10586.456 has been compiled on June 17 as per the info shared on BuildFeed. So, it may have already got ample time to get tested internally and it may be hopefully pushed this week to Insiders. Being a cumulative update kind of build it will not bring any new features but we can expect good amount of fixes.
You can read the massive Windows 10 Mobile Threshold (10586.xxx) changelog by clicking here.