# Release Notes

[![View Source On Gitee](https://mindspore-website.obs.cn-north-4.myhuaweicloud.com/website-images/r2.7.2/resource/_static/logo_source_en.svg)](https://gitee.com/mindspore/mindspore/blob/v2.7.2/RELEASE.md)
## MindSpore 2.7.2 Release Notes

### Major Features and Improvements

#### Ascend

- [BETA] The GroupedMatMul + Reshape + AssignAdd fuse pattern is supported in static graph mode when jit_level is O1, it can be enabled by setting the environment variable `export MS_DEV_GRAPH_KERNEL_FLAGS="--enable_cluster_ops=GroupedMatmul,Reshape"`.
- [STABLE] Support subhealthy device hot-switch in static graph mode when jit_level is O1 or O1, allowing replacement of subhealthy nodes without restarting the training cluster to achieve minute-level training resumption from breakpoints. Users can enable this feature by setting the environment variable `export MS_ENABLE_TFT="{ARF:1}"`.

### Parallel

- [STABLE] `msrun` supports setting CPU affinity to the scheduler process and worker process via the `taskset` command when launching distributed tasks. Users can set CPU affinity for the launched processes through the input parameter `--bind_core`.

#### PyNative

- [STABLE] Support the `frombuffer` feature on PyNative mode, enabling direct creation of MindSpore tensors from Python buffer protocol objects (such as bytes) without data copying.
- [STABLE] Support the `saved_tensors_hooks` feature in PyNative mode, allowing users to configure custom save and load logic for saved tensors that are retained during the forward pass and consumed during the backward pass.

#### Python

- [STABLE] Supports Python 3.12.

### Compatibility

The CANN 8.5.0 package has completed the upgrade to an open-source architecture and consists of two packages: Toolkit and ops. The decoupling optimization has led to a series of changes in naming conventions, quantities, usage relationships, and installation directories. MindSpore 2.7.2 needs to be used in conjunction with CANN 8.5.0. Compatibility with older versions will continue to be supported in MindSpore 2.8.0.

### Contributors

Bellatan,caifubi,chaijinwei,changzherui,chengbin,fuchao,guangpengz,guozhijian,hhz886,huangbingjian,huda,jiangna,jiaorui,kingxian,liangchenghui,lichen,liubuyu,liuluobin,liuyanwei,looop5,maoyuanpeng1,Margaret_wangrui,mengxian,NaCN,panzhihui,r1chardf1d0,rogeryu11,shaoshengqi,shen_haochen,shenwei41,tanghuikang,wang_ziqi,wangshaocong,wangyin,xiaotianci,xuzhen,yanghaoran,yide12,yuchaojie,yuliangbin,zhangyinxia,zhaochenjie,zhengzuohe,ZPaC,zyli2020,曹彤,范吉斌,胡彬,宦晓玲,李良灿,熊攀