The latest version of wxMaxima is 15.08.2. All files released so far are available from sourceforge project page.

Download wxMaxima

Windows
  • wxMaxima 16.04 +
  • Maxima 5.38.1
Mac OS X
  • wxMaxima 15.04.0 +
  • Maxima 5.36.1
Source
  • wxMaxima 16.12.0
  •  

Other

Linux

Most distributions provide binaries for maxima and wxmaxima in their repositories.

Ubuntu

A ppa is provided by István Blahota. It contains an up-to-date versions of both maxima and wxmaxima.

Mac OS X

Maxima and wxMaxima can be installed with the brew package manager.
brew tap homebrew/science
brew install maxima
brew install wxmaxima