Recent updates to the OED
The OED is updated four times a year, every March, June, September, and December.
The material added to the dictionary includes revised versions of existing entries (which replace the older versions), and new words and senses both within the alphabetical sequence of revised entries and also across the whole A to Z range.
Published quarterly since 2000, the updates make up the Third Edition of the OED.
September 2015 update
Hundreds of new words, phrases, and senses have entered the Oxford English Dictionary in the September 2015 update. Additions this quarter include hoverboard, telly addict, water baby, and underwater hockey. You can read more about the new and revised words and meanings in this article by Jonathan Dent, Assistant Editor of the OED.
See a full list of the new words, subentries, and senses added in this update.
The OED publishes four updates a year. The next update will be added to the dictionary in December 2015.
The previous updates page gives a full list of updates from March 2000 to September 2014.