The recent developments in Windows versions present challenges for app developers and IT professionals, particularly with the introduction of a new Windows version designed exclusively for the latest Arm PCs. This shift highlights Microsoft's commitment to Arm processors, moving away from its historical focus on x86 versions. The 24H2 update for Windows 10 and 11 introduced significant enhancements for Arm PCs, including an optimized x86-to-Arm translation layer called Prism, improving compatibility and performance for applications not originally designed for Arm. This update coincided with the launch of Qualcomm's Snapdragon X-series processors, leading to more Arm-native Windows applications being released by third-party developers. Microsoft's hardware strategy has shifted, as the new Surface PCs launched in mid-2024 now exclusively use Qualcomm processors, moving away from Intel chips. Since the 24H2 update, development on Arm and x86 versions of Windows has progressed at different rates, with certain features available on Arm versions earlier than on x86 systems. Windows 11 24H2 was also available on Arm PCs in retail stores months before being released to the broader PC ecosystem. Microsoft has been contacted for details on the upcoming Windows 11 26H1 update and its potential enhancements.