| A | ↘ | B | Table got worse |
| ⇢ | B | Table::ensureInferredSchema() added | |
| ⇢ | A | CsvDataSource::save() added | |
| ⇢ | A | Table::schema() added | |
| ⇢ | A | Table::headers() added | |
| ⇢ | A | Table::read() added | |
| ⇢ | A | NativeDataSource::open() added | |
| ⇢ | A | NativeDataSource::save() added | |
| ⇢ | A | Table::save() added | |
| ⇢ | A | Table::isInferSchema() added | |
| C | ↘ | D | Schema::__construct() got worse |