Last Year's April Fool's joke reappeared in Cydia today, thanks to code that checked for the date and displayed a Twitter-inspired Quick Bar. Saurik explained that the prank was intended to emulate the discontinued Twitter iPhone app feature, which received poor reviews. The Quick Bar automatically displayed promoted tweets.
The feature was renamed the "dickbar" by some frustrated users before it was eventually removed by Twitter. Saurik realized that some people might get confused by the feature reappearing every April 1st, so he removed the code once and for all. Cydia 1.1.6 incorporates this change and can be updated using the Cydia app.
The latest update to Cydia does not bring any other announced improvements or changes to the package installation app. To install the latest version navigate to Cydia and tap the Changes option. You will see the Cydia Installer package listed at the top of the screen. Touch the Upgrade button in the upper right hand corner of the screen.
You will be prompted to confirm the installation. Once the updated package has been installed, touch the Restart Springboard button. Now you can rest assured the Cydia Quick Bar will not reappear on April 1st next year.