There isn't a singular, universally recognized "Version 11" that is vastly different from other recent builds. Baofeng software is notoriously generic. The software you need is typically labeled simply as "UV-8D Programming Software" . The version number matters less than the compatibility with your specific hardware revision.
What or radio service (GMRS, FRS, Ham) do you need to program into those 11 slots? baofeng uv 8d software 11 hot