| ⇢ | A | PostponeReferences added | |
| C | ↘ | F | NodeManagementService got worse |
| ⇢ | B | NodeManagementService._add_unique_reference() added | |
| ⇢ | B | NodeManagementService._delete_unique_reference() added | |
| ⇢ | B | Node.delete_reference() added | |
| ⇢ | B | _to_nodeid() added | |
| ⇢ | A | Node.add_reference() added | |
| ⇢ | A | PostponeReferences.__exit__() added | |
| ⇢ | A | _create_reference_type() added | |
| ⇢ | A | PostponeReferences.add_references() added | |
| ⇢ | A | NodeManagementService.try_add_references() added | |
| ⇢ | A | _check_results() added | |
| ⋮ | view more | ||
| A | ↘ | B | XmlImporter.import_xml() got worse |
| F | ↗ | B | NodeManagementService._delete_reference() improved |