| ⇢ | B | ReaderFactory added | |
| B | ↛ | ReaderFactory removed |
| ⇢ | A | ReaderFactory::create() added | |
| ⇢ | A | ReaderFactory::getXLSXReader() added | |
| ⇢ | A | ReaderFactory::getODSReader() added | |
| ⇢ | A | ReaderFactory::getCSVReader() added | |
| A | ↛ | ReaderFactory::create() removed | |
| A | ↛ | ReaderFactory::getXLSXReader() removed | |
| A | ↛ | ReaderFactory::getODSReader() removed | |
| A | ↛ | ReaderFactory::getCSVReader() removed |