September 2013 update
The September update completes the revision of the pronoun entries in the OED with he, she, it and they; changes seen include the use of it adjectivally for “fashionable”, as in It Girl. Two clusters that have been revised include great and grey, continuing the colour word theme seen in recent updates.
You can read more about the revisions and new words in the September 2013 update in this article by the Chief Editor of the OED, John Simpson (his last before retiring in October).
See a full list of the new words, subentries, and senses added in this update.