I've upgraded a WordPress install from a very old version (I think it was 2.5 or even older--circa 2007) to 2.8.4. The upgrade proceeded but the error below was reported. Can someone please let me know if this is a problem?
WordPress database error: [Table 'test.wp_linkcategories' doesn't exist]
SELECT cat_id, cat_name FROM wp_linkcategories
Your WordPress database has been successfully upgraded!