AutoCAD 2021, released in March 2020, is a critical tool for computer-aided design across architecture, engineering, and construction (AEC) industries. While the software is distributed in multiple languages, Autodesk employs a modular language pack system. Unlike earlier versions where language was embedded during initial installation, AutoCAD 2021 allows dynamic language switching via downloadable .msi or .exe packages known as – or Paquetes de Idiomas .