Obtaining the software
FreeCAD is available in many forms. The most reliable place to get the current release is starting at FreeCADWeb.org The download page prominently displays the current release.
Linux – Appimage
Installing the software
Installation on Windows
Installation on Mac
Installation on Linux
Using an Appimage is a great way to try out FreeCAD. If you want a permanent installation check out you distros version in the repository. Currently version 0.18 is in available in apt for Debian based.
Version 0.18 is the current release with many of the more current goodies.
To see what version you have in your repo type this:
sudo apt-cache info freecad
look for line like this: