This year, we are celebrating the 15th anniversary of QEMU (QEMU 0.1 was announced in March 2003), and to contribute to this celebration, we will have another edition of the QEMU Advent Calendar this year. The new website for the advent calendar is now online at www.qemu-advent-calendar.org – but please do not try to open any of the doors before December 1st. We are also still looking for some images which we can present this year. If you would like to help, please have a look at the “QEMU Advent Calendar 2018 - Help wanted” mail that I have sent to the QEMU mailing lists.