hi there,
i had a db update loop caused by my custom cache configuration.
i use memcached as object cache and the cached object for wp_db_version had’nt expired. so wordpress was told it still uses an old db version (-:
after “kicking” memcached the loop was broken 🙂
wp upgrade from 2.6 to 2.6.1
cheers
basti
had the problem today that could be fixed with the gzip workaround.
then i discovered that the problem was a blank line after ?> in the wp-config.php which produces an empty line of output and screws up the gzip detection stuff, rss feeds and so on.
when i restored the tiny_mce_gzip.php to the default (with the fixe provided here) and cleaned up wp-config.php everything worked fine 😉
so look out for initial empty lines in the output of your blog ;))