We hope that the international mathematical education community will enthusiastically receive the invitation of our Australian colleagues for 2024, so to make ICME-15 a huge international event that will advance studies, interest and support for mathematics education all over the world. The congress – to be held under the auspices of the International Commission on Mathematical Instruction (ICMI) – will take place from July 7-July 14th 2024. Sydney is a bustling cosmopolitan ciry and offers a perfect environment for a challenging congress.