Which means it's now on the long slow slide into obsolescence. I figure it's good for software updates for maybe another 12 months, after that it's just a matter of time until some software I need / want requires an OS version the tablet can't support.
The tablet has an earlier version in 2012, and a refresh in 2013 which was a major update in terms of the hardware. It's basically being retired after only 2-3 years, which is a shame, since it's quite a decent little tablet - the 2013 refresh at least is.
I expect it will still give me a couple more years of happy service in any case, and since that meets my "five year lifetime" criteria for buying, I'm still relatively happy.