08/09/2019: The cache directory has been moved
NOTE: This only affects existing installations.
Starting from version
0.12.0 of the package manager, the cache
directory is now located at
$XDG_CACHE_HOME variable is unset).
This change was made to prevent a potential security issue when KISS is used on a multi-user system. The cache is now effectively local to each user.
/var/cache/kiss directory is no longer used by the
package manager. If you would like to keep your current cache, you will
need to relocate it to the new location mentioned above.