One of the new features is the SEO section, to give you an understanding about Search Engine Optimization and to help you optimize your website.
We also have a new dictionary, explaining some of the most common expressions used in TYPO3 CMS. If you are missing something in this dictionary, it's possible to send a request to add this as well.
An upcoming feature is the Video section, where we will be adding short tutorials on the basic functions in TYPO3. Something to look forward to!
So, enjoy the new TYPO3manual.se!