Find out how to use all the new 4.6 features and read the re-vamped Events chapter at http://gitbook.civicrm.org/.
First the formalities...
Thank you to the people who contributed to this update including Joanne Chester, Maya Gibb, Roshani Kothari, Michael McAndrew, Joe Murray, Kate Sneed, Galata Tona and any others I have forgotten to mention.
Now for an explanation...