Last modified: 2008-09-18 17:51:06 UTC
Summary pretty well describes it. No matter the status of the "Include only the current revision, not the full history" checkbox, Special:Export will only export the current revision.
Wikimedia live sites are temporarily hacked to disable full-history loading.
Changing product from MediaWiki to Wikimedia web sites
*** Bug 3236 has been marked as a duplicate of this bug. ***
This has been fixed on June 2006. All wikis allow exporting histories ($wgExportAllowHistory = true) with a $wgExportMaxHistory of 1000. Except enwiki, which is not bounded. Additionally to Special:Export plus offset, now content can also be fetched from the API.