From the 1st January 2020, the Comptes Rendus de l'Academie des Sciences will be published by the Centre Mersenne for Open Scientific Publishing (https://www.centre-mersenne.org) for Mathematique, Physique, Mecanique, Chimie, Geoscience and Biologies journals, and by the Museum national d'Histoire Naturelle (https://www.mnhn.fr) for Palevol. The end of 2019 sees the conclusion of the long and rewarding collaboration between Elsevier and the French Academie des Sciences. After 23 years, and effective 1 January 2020, Elsevier will no longer publish the seven Comptes Rendus of the Academie des Sciences. The journals will be published by the CNRS' Centre Mersenne (http://www.centre-mersenne.org). This has been announced already few weeks ago, and more details can be found in the news section of the journals' home pages.