# Release Notes

## MindSpore Lite 2.3.1 Release Notes

### Major Features and Improvements

When converting Ascend backend models, the [input_shape](https://www.mindspore.cn/lite/docs/en/r2.3.1/use/cloud_infer/converter_tool_ascend.html) parameter in the configuration file is supported to specify the input size.

### API Change

- [ModelGroup](https://www.mindspore.cn/lite/docs/en/r2.3.1/use/cloud_infer/runtime_cpp.html) interface adds model weight sharing support to save video memory.

- [Model.get_model_info](https://www.mindspore.cn/lite/docs/en/r2.3.1/use/converter_tool.html?highlight=get_model_info) interface adds support for obtaining the input size of the model.

### Contributors

熊攀;ZhangZGC;jxl;zhangyanhui;emmmmtang;huandong1;yefeng