Last week, Microsoft rolled out Windows 10 Mobile Insider Preview build 10586.63 - its first preview release of the new year. Today, its releasing the same build for PCs - specifically, for those not enrolled in the Windows Insider Program.
The PC release is making its way to devices via Windows Update as a cumulative update, identified as KB3124263.
As with the corresponding Mobile version of build 10586.63, the PC release is not expected to include any major new features, focusing instead on bug fixes and other improvements.
Meanwhile, the latest PC release for Windows Insiders is build 11082, the first preview to originate from the Redstone development branch.
Source: Windows Central