(This downloads macOS High Sierra, which includes Configurator 2.6 within its bundled software updates.)
Released in December 2017, version 2.6 was a milestone update that focused on several key enterprise and education needs: Apple Configurator 2.6 Download REPACK
Use the command-line tool (cfgutil) to script repetitive tasks. Risks of Downloading "Repacks" (This downloads macOS High Sierra