ComiXology and Amazon’s Kindle platform both released a digital version of the first volume of CLAMP’s Cardcaptor Sakura: Clear Card manga on June 30, 2017.
The Amazon page lists Kodansha Comics as the publisher, and also lists that Kodansha Comics will release the first volume in print on November 14, 2017.
Kodansha Comics is presenting the world premiere of the Cardcaptor Sakura: Clear Card Arc Prologue: Sakura and the Two Bears video anime at the Anime Expo convention on July 1, 2017.
Source: ANN