Following the TYPO3 CMS maintenance policy, versions get deprecated and finally be discontinued as the time goes by. TYPO3 CMS 4.6 is at the end of its lifetime as soon as TYPO3 CMS 6.1 has been released to the public. Thus, it's time to say good-bye to TYPO3 CMS 4.6 "--rebase" which originally has been released in October 2011.