Better backend Safari compatibility and updated security were the two reasons to upgrade … that and the fact that WP 2.1 is supposed to be a much stingier MySQL user (more optimized, better queries, fewer queries per page).
Plugin compatiblity was my big question mark, and it was a bit of a hassle to get my tag cloud working again. Still looks a little odd (top left column) but I’ll get to that soon enough.
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Oh, the one other reason to upgrade to 2.1? WordPress now auto-saves your blog posts as you’re writing them. Awesome! No more losing 95% finished posts because I was too dumb to “Save and continue editing.”[tags] wordpress, upgrade, blogging, john koetsier [/tags]