USGBC: LEED v5 becomes the only option for new commercial project registrations starting July 1, 2026 (BD+C, ID+C, O+M)

USGBC Help Center guidance states that beginning 2026-07-01, LEED v5 will be the only version available for new registrations for commercial BD+C, ID+C, and O+M (with limited exceptions referenced in the official deadlines table). This affects project registration decisions and contract/scoping language for projects intending to pursue LEED certification around mid-2026.