ElumTools releases will operate only with the appropriate version of Revit, For example: ElumTools 2018 works with Revit 2018 only. When purchasing ElumTools you will have access to previous versions back to 2015. However, functionality may vary from version to version. Typically, only the two or three most recent versions are identical and fully supported.

Autodesk Revit specifications

Recommended Performance
High Performance
Quad-Core Processor 2.30+Ghz
6+ Processor cores 2.60+Ghz
4+GB RAM - 64-bit OS
8+GB RAM - 64-bit OS
Windows 7, 8 or 10 (64-bit)
Windows 7, 8 or 10 (64-bit)
Support for OpenGL 3.3
512+ MB Graphics Memory
Support for OpenGL 3.3
1024+ MB Graphics Memory
Minimum screen resolution: 1024x768
32-bit color support (True Color)