When will this be automatic? I have I think 6 sites running Wordpress at Sonic.net and there is no way in hell I'm going to figure out how to get to the shell (can't telnet anymore and haven't done that for years anyway) and upgrade .htaccess files for every single site. AND repeat the process every few months when there's a new PHP out.
I've updated all 5 of your Wordpress sites to fix the database issue  and put them on PHP 5.6. Unless something major changes in Wordpress or PHP's behavior, you shouldn't have to touch the database again. You may need to login to Wordpress Admin page for each site if it has not been updated in a while or you got a warning last time.
 For those who care about the technical details of why old passwords don't work in PHP 5.6 and later, see here. Sonic's Wordpress One-Click Installer, used to use the old password format when setting up the database, so for sites that have been around a long time, they might suffer similar database connection issues when trying to use PHP 5.6.