The official docs aren't the only game in town. For 4.26, three external resources are invaluable:
The Unreal Engine 4.26 documentation includes a range of features that make it an invaluable resource for developers. Some of the key features include: unreal engine 4.26 documentation
Unreal Engine 4.26, released by Epic Games in late 2020, stands as one of the most significant updates in the UE4 era. It introduced powerful tools for environmental design, character realism, and high-end virtual production that bridged the gap toward Unreal Engine 5. The official docs aren't the only game in town
A new component allows for the creation of cinematic-quality skies that interact dynamically with the Sky Atmosphere and Sky Light. It supports realistic shadowing from meshes and clouds in real-time as the time of day changes. unreal engine 4.26 documentation