| ⇢ | A | Player added | |
| ⇢ | A | LevelProgress added |
| ⇢ | A | IntegerValue::diff() added | |
| ⇢ | A | IntegerValue::increment() added | |
| ⇢ | A | LevelProgress::reset() added | |
| ⇢ | A | Player::increaseExperience() added | |
| ⇢ | A | Player::levelUp() added | |
| ⇢ | A | Player::__construct() added | |
| ⇢ | A | IntegerValue::increaseBy() added | |
| ⇢ | A | IntegerValue::isGreaterThan() added | |
| A | ↛ | IntegerValue::advantage() removed |