I have upgraded from 2.0.4 to 2.1.2 recently, now my "Pages" are broken. They show the correct <title>, yet the blog index instead of their content. See my site at http://www.helge.at.
Following Lorelle's post I have searched all my theme files and found NO occurrencies of depricated templates, except these ones that don't seem to make problems:
list_cats: continues to display nicely. no problems whatsoever visible.
link_pages: in page.php. I have removed that, what it did wasn't necessary anyway.
previous_post: continue to display nicely. no problems whatsoever visible.
Nevertheless all my static pages are still broken.