Over the past weekend, the author reviewed session videos from Build 2026, focusing on Windows 11. The sessions were categorized into three areas: Windows app development, developer productivity, and agentic AI. The introduction of hybrid agents, which combine local AI sub-agents, was a notable development. Microsoft's partnership with Qualcomm led to the launch of Windows 10 on Arm-based PCs branded as Always Connected PCs, which evolved into Copilot+ PCs with Nuvia-powered chips for Windows 11. The Copilot+ PCs emphasize on-device AI experiences through powerful neural processing units (NPUs). The introduction of second-generation Snapdragon X2-based PCs is underway, although adoption is slower than expected. Microsoft confirmed that Windows 11 will integrate AI agents, including local AI agents and hybrid agents. The capabilities of local AI models are being enhanced, and Windows AI APIs will now support CPUs and GPUs. New Nvidia chipsets will enable large language models to run locally on PCs. The orchestration of local and cloud AI components is essential for efficient AI workload management. Microsoft is addressing user pain points to support a robust local foundation for hybrid AI, aiming to improve Windows 11 overall.