diff --git a/.env.local b/.env.local
index 88ac8a46..f6c73f38 100644
--- a/.env.local
+++ b/.env.local
@@ -35,6 +35,8 @@ GRADIO_SERVER_NAME=
 GRADIO_SERVER_PORT=
 GRADIO_ROOT_PATH=
 GRADIO_IPV6=
+# backend
+USE_MCA=
 # setup
 ENABLE_SHORT_CONSOLE=
 # reserved (do not use)
diff --git a/README.md b/README.md
index 6d705680..9aa7aa11 100644
--- a/README.md
+++ b/README.md
@@ -123,6 +123,8 @@ Choose your path:
 
 ## Changelog
 
+[25/10/26] We support Megatron-core training backend with [**mcore_adapter**](https://github.com/alibaba/ROLL/tree/main/mcore_adapter). See [PR #9237](https://github.com/hiyouga/LLaMA-Factory/pull/9237) to get started.
+
 [25/08/22] We supported **[OFT](https://arxiv.org/abs/2306.07280)** and **[OFTv2](https://arxiv.org/abs/2506.19847)**. See [examples](examples/README.md) for usage.
 
 [25/08/20] We supported fine-tuning the **[Intern-S1-mini](https://huggingface.co/internlm/Intern-S1-mini)** models. See [PR #8976](https://github.com/hiyouga/LLaMA-Factory/pull/8976) to get started.
diff --git a/README_zh.md b/README_zh.md
index 62f29ddc..0b434b43 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -125,6 +125,8 @@ https://github.com/user-attachments/assets/43b700c6-a178-41db-b1f8-8190a5d3fcfc
 
 ## 更新日志
 
+[25/10/26] 我们支持了Megatron-core作为训练后端和适配了[**mcore_adapter**](https://github.com/alibaba/ROLL/tree/main/mcore_adapter)。查看[PR #9237](https://github.com/hiyouga/LLaMA-Factory/pull/9237)以使用。
+
 [25/08/22] 我们支持了 **[OFT](https://arxiv.org/abs/2306.07280)** 和 **[OFTv2](https://arxiv.org/abs/2506.19847)** 模型的微调。查看 [examples](examples/README.md) 以使用。
 
 [25/08/20] 我们支持了 **[Intern-S1-mini](https://huggingface.co/internlm/Intern-S1-mini)** 模型的微调。查看 [PR #8976](https://github.com/hiyouga/LLaMA-Factory/pull/8976) 以使用。