As I understand it there is no automatic update of shows. You need to manually delete and download again.
As for giving information this is an ongoing general issue when it comes to dealing with Totem. They don't want to share this info officially since it might make them look bad... *wink wink*
I still have a list of 100+ cards that need to be fixed or that we have found to have been fixed on my fan site:
http://www.civxl.net/card_status.phpHere I try my best to keep an updated list of changes in the cards I have reviewed for my site.
NOTE: This is not an official card bugs list!