| ⇢ | A | CompareStrategyFactory added | |
| ⇢ | A | EqualTo added | |
| ⇢ | A | GreaterThan added | |
| ⇢ | A | GreaterThanOrEqual added | |
| ⇢ | A | IdenticalTo added | |
| ⇢ | A | LessThan added | |
| ⇢ | A | LessThanOrEqual added | |
| ⇢ | A | NotEqualTo added | |
| ⇢ | A | NotIdenticalTo added |
| ⇢ | C | CompareStrategyFactory::create() added | |
| ⇢ | A | NotIdenticalTo::compare() added | |
| ⇢ | A | InvalidArgumentException::invalidOperator() added | |
| ⇢ | A | EqualTo::compare() added | |
| ⇢ | A | GreaterThan::compare() added | |
| ⇢ | A | GreaterThanOrEqual::compare() added | |
| ⇢ | A | IdenticalTo::compare() added | |
| ⇢ | A | LessThan::compare() added | |
| ⇢ | A | LessThanOrEqual::compare() added | |
| ⇢ | A | NotEqualTo::compare() added | |
| B | ↗ | A | DecisionStump::evaluate() improved |