Continuum Analytics: Documentation

# Switching an environment from Python 2 to Python 3

The command `conda update` moves up to the latest compatible version, while `conda install` can install any version.

EXAMPLE: If Python 2.7.7 is currently installed, but the latest version of Python 2 is 2.7.12 and the latest version of Python 3 is 3.5.2, then `conda update python` installs Python 2.7.12, while `conda install python=3` installs Python 3.5.2.

Conda uses the same rules for other packages, so `conda install` always installs the highest version, and `conda update` always installs the highest version with the same major version number.