"We are pleased to share an important milestone for our field. Beginning January 2026, all ACM publications and related artifacts in the ACM Digital Library will be made open access. This change reflects the long-standing and growing call across the global computing community for research to be more accessible, more discoverable, and more reusable."
https://cacm.acm.org/news/a-message-to-the-computing-community-about-acms-transition-to-full-open-access/