Ayam 1.20 发布，该版本增加了 Windows 和 Linux 下的可执行安装程序，同时还包括：
1. New object types for mirrored modeling and interpolating surfaces.
2. Concatenation of NURBS now supports fillets and allows quadrics, tool objects, and curves as parameters.
3. NURBS curve modeling tools to manipulate the control point multiplicity were added, and many other tools improved.
4. Some bugs were fixed