The most common and final thing to fix for Drupal 11 compatibility. It is not required to specify composer.json limitations on Drupal core compatibility, as the Drupal.org composer endpoint will take the values from info.yml files anyway. However, it is required that the info.yml file core_version_requirement setting is Drupal 11 compatible. Only make this change if the other problems are already fixed to avoid causing issues on Drupal 11 sites.
core_version_requirement
Results are from dataset #256676 from 2024-08-17T19:58. Report is ran by the Drupal Association regularly.