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Error: failed to update Wordpress to the latest version
Sometimes, updates on your WordPress (update 3.x installation, theme removal, etc.) fail, resulting in symptoms such as actions going round on a loop, an error message, etc.
Actions to be performed
Disable your Wordpress extensions and retry the Wordpress update
Give different FTP parameters:
- FTPinstead of FTPS (SSL) especially, or the inverse (fig.1).
- www.domaine.xyz instead of ftp.domaine.xyz, etc.
If the problems persist, or if the symptom is more of the type "Fatal error: Cannot redeclare sticky_class() (previously declared in ... /web/wp-includes/deprecated.php on line 3192" try to perform a manual update of your WordPress. You will find the procedure you need to follow here: http://codex.wordpress.org/Updating_WordPress#Manual_Update