#summary Instructions for switching between versions.

= Release or Development Version? =

CORE releases are numbered such as CORE 4.2, CORE 4.3, etc. They can be found as [http://downloads.pf.itd.nrl.navy.mil/core/packages/ packages] or [http://downloads.pf.itd.nrl.navy.mil/core/source/ source]. [http://downloads.pf.itd.nrl.navy.mil/core/source/nightly_snapshots/ Development snapshots] are created nightly as source tarballs.

Choose the latest CORE release if:
 * you want a more stable, tested CORE
 * you would like to use pre-built binary packages
 * you want documentation

Choose the development snapshot if:
 * you want bleeding edge features
 * you desire some functionality or bugfix described on the CORE mailing list, blog, or wiki
 * you're running with the latest Linux distro that is not supported by the latest release
 * you're comfortable compiling and installing the CORE source

= Switching Versions =

First, uninstall the previously installed version.

To uninstall the CORE package, use a command such as:
{{{
  # Ubuntu package uninstall
  dpkg -r core-4.3
}}}
{{{
  # Fedora package uninstall
  rpm -e core-4.3
}}}

To uninstall from the CORE source, change to your CORE source build directory and use `sudo make uninstall`:
{{{
  # source uninstall
  cd core-4.3
  sudo make uninstall
}}}

Uninstalling should not remove your user settings or `imn` scenario files. See the notes in the section below.

Next, follow the installation instructions in the [Quickstart] or CORE manual to install from packages or source.

= Compatibility Notes =

Notes on `imn` file compatibility will be listed here.

When upgrading, you may want to back up your `.core` user directory or temporarily move it out of the way. This allows the GUI to re-create default settings