Its still beta, but if you have a testing site, just try it. I really liked some new features like the linking
- Fatal error: Call to a member function is_page() on a non-object in /wp-includes/query.php. is_page() may be any conditional tag. This issue occurs when a theme or plugin is doing something wrong. Some code is checking the value of a conditional tag before we actually set up the Query, which means they don’t work yet. In 3.0, they silently failed and always returned false. In 3.1 Beta 1, this is throwing a fatal error. This will be handled in the final release, so use this opportunity to fix your plugins. (#14729)
- All known issues slated for fixing before launch are listed in Trac. Please check this list to see if a bug is already on the list before reporting it.