| ⇢ | A | CountableTrait added |
| ⇢ | A | CountableTrait::many() added | |
| ⇢ | A | CountableTrait::one() added | |
| ⇢ | A | CountableTrait::off() added | |
| ⇢ | A | EventCapableTrait::trigger() added | |
| ⇢ | A | CountableTrait::hashCallable() added | |
| A | ↛ | EventDispatcher::many() removed | |
| A | ↛ | EventDispatcher::one() removed | |
| A | ↛ | EventDispatcher::off() removed | |
| A | ↛ | EventDispatcher::hashCallable() removed |