Announced in https://www.drupal.org/drupalorg/blog/ending-packagesdrupalorg-support-for-composer-1, Drupal Composer 1 support is being phased out!
1️⃣ New Drupal.org packages/releases will not be available for Composer 1 after Aug 12, 2024.
2️⃣ Composer 1 support for older packages will be dropped after Oct 1, 2024.