| A | ↘ | B | Initializable got worse |
| ⇢ | C | Initializable._initialize() added | |
| ⇢ | B | Initializable._collect_roles() added | |
| ⇢ | B | Initializable.get_scheme() added | |
| ⇢ | B | Initializable.__getattr__() added | |
| ⇢ | A | Initializable._validate_roles() added | |
| ⇢ | A | Initializable.get_param_roles() added | |
| ⇢ | A | Initializable.__setattr__() added | |
| ⇢ | A | VariableRole.__hash__() added | |
| C | ↗ | B | Initializable._push_initialization_config() improved |
| A | ↛ | LinearLike._initialize() removed | |
| A | ↛ | LookupTable._initialize() removed | |
| A | ↛ | Bias._initialize() removed |