I use this simple, very nice plug-in from Ciaran Gultnieks to hide the black bar at the top of the new WordPress 3.8 front-end, and to hide/show the WordPress toolbar:
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After attempting an automatic update to my self-hosted WordPress install from version 3.6.1 to version 3.7, within the admin panel, the site returned a completely blank page... I was unable to log back in to the admin panel at all, and the public site was down as well. The resulting URL displayed in the window contained:
../wp-admin/upgrade.php?_wp_http_referer=%2Fwp-admin%2F
...and in the the error log (viewable via FTP) was the entry:
Call to undefined function wp_get_current_user() in /wp-includes/user.php on line 215
In the WordPress.org › Support » Installation forum, user photoMaldives had the fix posted here... nice job.
I’ve been incorporating two-factor authentication wherever I can in my digital life, and mobile apps like Google Authenticator can make it a snap to implement, especially with easy QR code verification. But until now I hadn't found a solution I liked for WordPress, having tried a number of different plug-ins, only to later uninstall. Enter Rublon, a mobile authentication app I saw reviewed (along with several other apps) on the Torque website, by contributor Jay Hoffmann. The Rublon app and its WordPress plug-in work perfectly for my purposes, easy to implement and very similar feel to the Google Authenticator process. It's an additional security layer on top of your existing log in authentication, and with the Trusted Devices feature, you only need to set it up once in any given Web browser, and you can forget it... highly recommend.