Sadly not a major update
The Shorter OED is too Britocentric and does not cover North American English well. If you live in the US or Canada, the Merriam Webster is a much better work.Unlike the OED, specific dates are not given and only date ranges such as E17 (for early 17th century) are provided.The quotations are given haphazardly for some senses but not others and many words have no quotations at all. You might be better off getting the whole OED if you're interested in the history of words.If you already have the fourth or fifth edition, do not bother buying this sixth edition as sadly little has changed. Apparently, Oxford University Press is more interested in churning out editions in order to pad its bottom line but won't make the effort to truly update the dictionary.