CHECKWIND v4.1.0 is now live and can be downloaded here. New features and enhancements include:

• Updates to the Terrain Category (M_z,cat), Shielding Structures (M_s) and Exposure Category (K_z) detection algorithms to account for recent changes to Google’s map data format.
• AS 4055: Override Shielding Classification to account for future developments and heavily wooded areas.
• ASCE 7-10/ASCE 7-16/TIA-222-G/TIA-222-H: Updated ice wind speed maps for Puerto Rico, U.S. Virgin Islands, Guam and American Samoa.
• ASCE 7-10/ASCE 7-16/TIA-222-G/TIA-222-H: Improved automatic Topography Factor (K_zt) calculation including an option to adopt Crown Castle reference ENG-PRC-10040 design methodology.
• TIA-222-G/TIA-222-H: View average upwind terrain level in Topography Factor (K_zt) review dialog.