While I really love WordPress and like to work with it, issues with updating are quite normal in these days, the latest updates seems not to work well with some WordPress installations and/or themes, based on the dropping of the category table in WP2.3 Dexter.

See for example this article on WLTC, where most of the comments mention the fixing of the not existing data tables. This thread at the WP forums is featuring an interesting quote:

Okay why is the new version 2.3 advertised as most themes are not compatible?

In fact the compability list of themes is empty, the plugins list doesn’t look better.

Looks like I have a lot to do with my 200000 downloads, however some of the buggy codes looks like the following code, where I know, that I NEVER used this kind of code.

Anyway, I’ll test ALL of my themes for compability and will post the results til friday.


php wp_get_archives('type=yearly');
if (wp_version() == '20') {
$link_cats = $wpdb->get_results("SELECT cat_id, cat_name FROM $wpdb->linkcategories");
}
else {
$link_cats = $wpdb->get_results("SELECT cat_id, cat_name FROM $wpdb->categories WHERE link_count >= 1");
}
foreach ($link_cats as $link_cat) {
.