It is with great pleasure that we announce the 4th ECATS conference to take place at the TU Delft on the 24-26th October 2023.

This will be our first in person conference since 2017, our pandemic conference being online only. We look forward to seeing old and new colleagues in October for what we hope will be a stimulating scientific discussion. Registration is now open and we would invite you to submit abstracts for the conference.

Further details are provided at the conference website here ^[1].