Summary of the main points from the video:

1. Installation – includes an option to put the site into offline mode immediately

2. Offline mode - ability to include your own image

3. Control Panel Quick Icons – alerts you if a Joomla or extension upgrade is available

4. Smart Search – provides a better search experience

5. Captcha – Recaptcha service built-in to the core

6. Article Images and Links – makes it easier to add images and links to articles

7. Language settings – update standard Joomla text strings from Administrator

8. Category filtering – display all articles within a category and related sub-categories

9. User Notes – assign multiple notes to users

10. New user email notification – can now be disabled