The Ultimate Character Controller and all child controllers have been released on the Asset Store! All of the upgrades have also been applied and you can get it at the following links:

Ultimate Character Controller: https://assetstore.unity.com/packages/templates/systems/ultimate-character-controller-99962

Third Person Controller: https://assetstore.unity.com/packages/templates/systems/third-person-controller-126347

UFPS: https://assetstore.unity.com/packages/templates/systems/ufps-ultimate-first-person-shooter-106748