Which version of LEED is referred to as LEED v4?

LEED v4 is specifically recognized as the fourth iteration of the LEED rating system, which was launched in 2013. This version introduced significant updates and changes to the way buildings are evaluated for sustainability and environmental impact. LEED v4 expanded the focus on performance and resilience, emphasizing a more integrated approach to sustainability that includes materials, site development, energy efficiency, and water management, among other factors.

This iteration built upon its predecessors by incorporating more rigorous standards and enhancing the relevance of the rating system to current environmental challenges, solidifying its role in guiding modern building practices toward greater sustainability. It further reflects the evolving needs of the building industry, aligning more closely with market demands and technological advancements in sustainability.