I just updated xmlsitemap module from 6.x-2.0-beta1 to 6.x-2.0-rc2 and all of the sudden I'm seeing following in my watchdog:

16674672  15/Nov 13:05  error  php  User warning: Unknown column 'max_filesize' in 'field list'
query: SELECT MAX(max_filesize) FROM xmlsitemap_sitemap in _db_query() (line 169 of /var/www/html/XXXXXXXXXX