LO 4.0 broke the 6th most popular Writer Extension [closed]
"Template Changer" is the 6th most popular extension for Writer, as ranked by "likes:" http://extensions.libreoffice.org/extension-center?getCategories=Writer_Extension&getCompatibility=any
A "medium" priority core feature request has been made, but I would guess many users are impacted by this change and will need to downgrade (as I have). https://bugs.freedesktop.org/show_bug.cgi?id=60660