Government departments
- Ministry of Justice: HM Prison and Probation Service - Phil Copple appointed as director general for prisons on an interim basis, and Amy Rees as director general for probation on an interim basis.
- Foreign and Commonwealth Office: David Lelliott has been appointed Her Majesty’s Ambassador to the Republic of El Salvador; David McIlroy has been appointed Her Majesty's Ambassador to the Republic of Guinea in succession to Catherine Inglehearn in June; Neil Bush is to succeed Sian MacLeod as Head of the United Kingdom’s Delegation to the Organization for Security and Co-operation in Europe in March.
- HM Treasury: Financial Policy Committee - Colette Bowe and Jayne-Anne Gadhia have been appointed as external members.
- Department for Environment, Food and Rural Affairs: Ben Elliot appointed as government’s first Food Surplus and Waste Champion.
House of Lords
- Lord Ashdown of Norton-sub-Hamdon (Liberal Democrat, Life Peer) died on 22 December.
- Lord Higgins (Conservative, Life Peer) retired on 1 January.
House of Commons
- John Redwood, Gary Streeter and Alan Campbell received knighthoods.
- Edward Leigh, Philip Dunne and Roger Gale joined the Privy Council.
- Fiona Onasanya expelled from the Labour Party and now sits as Independent.
- Andrew Bowie appointed as parliamentary private secretary to the prime minister.
Devolved Authorities
Interest Groups
- Save the Children UK: Peter Bennett-Jones to resign as chair at the end of the month.
- Campaign for Real Ale: Tom Stainer appointed as chief executive and Ken Owst as deputy chief executive.