That's what we wrote on 24 January 2016.
Sir Jeremy Heywood is the Cabinet Secretary and the Head of the UK's Home Civil Service ... He published his review of calendar 2015 in a series of 54 tweets between 23 December 2015 and 3 January 2016 ...
No such review of 2016 is being tweeted at the moment by Sir Jeremy.
Perhaps nothing much has happened this year.