As unexpected, WP 2.5 introduce annoying changes :
1) WP_listPages() don’t hide subpages of a « excluded » parent page :
http://trac.wordpress.org/ticket/6804 (Ticket #6804)
2) Uploading attachments to a « password protected » WP 2.5 show an HTTP error : a workaround plugin is available to suppress « Flash uploader »:
http://trac.wordpress.org/ticket/6846 (Ticket #6846)
3) Post Name (or slug of a post or a page is) not available if permalink is not used.
A workaround is possible (not yet through a plugin).
