From the upgrades file:
# Leaving this set to 0 will allow the current behavior of showing whatever leftover stories are left from the select for the main column of the index
# Changing this value to something positive will limit the number showing up in the Older Stories Slashbox
ALTER TABLE skins ADD COLUMN older_stories_max MEDIUMINT UNSIGNED DEFAULT '0' NOT NULL;
I'm curious as to why this was needed?