diff --git a/Dockerfile b/Dockerfile
index 6b2099703..4d0116c1f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 ###############################################################################
-# Stage 0 ─ builder-torch：编译 PyTorch 2.7.1 (+cu126)
+# Stage 0 ─ builder-torch：编译 PyTorch 2.8.0 (+cu126)
 ###############################################################################
 ARG CUDA_VERSION=12.6.1
 FROM nvidia/cuda:${CUDA_VERSION}-devel-ubuntu22.04 AS builder-torch
@@ -38,6 +38,7 @@ COPY ./pytorch_2.8.0/ /opt/pytorch
 WORKDIR /opt/pytorch
 ENV MAX_JOBS=${MAX_JOBS}
 RUN echo "Building PyTorch with USE_DISTRIBUTED=$USE_DISTRIBUTED" && \
+    export PYTORCH_BUILD_VERSION=2.8.0 PYTORCH_BUILD_NUMBER=1 && \
     python3 setup.py bdist_wheel
 
 ###############################################################################
@@ -141,7 +142,7 @@ RUN python3 -m pip install --no-cache-dir "cmake>=3.27,<4.0" scikit-build-core==
     '
 
 
-# ★ 构建期 constraints：把自编的 torch / sgl-kernel / flashinfer 都锁到本地 wheel
+# ★ 构constraints：把自编的 torch，sgl-kernel，flashinfer都锁到本地 wheel，用于接下来的sglang 0.5.2打wheel
 RUN bash -lc '\
   set -euo pipefail; \
   TWHL=$(ls /tmp/torch_dist/torch-*.whl | head -n1); \
@@ -156,6 +157,7 @@ RUN bash -lc '\
   echo ">>> build-time constraints:"; cat /tmp/local_constraints_build.txt \
 '
 
+#安装刚构建好的sgl_kernel到当前正在构建的docker image中
 RUN python3 -m pip install --no-cache-dir --no-deps /tmp/sgl_kernel_wheels/sgl_kernel-*.whl
 
 
@@ -230,7 +232,6 @@ COPY _wheelhouse/ /tmp/wheels/
 
 # 安装顺序与 runtime-autobuild 完全一致（优先 torch，再装其它）
 RUN ls -lh /tmp/wheels || true && \
-    # rm -f /tmp/wheels/torch-2.7.1a0+*.whl && \
     rm -f /tmp/wheels/huggingface_hub-0.34.4*.whl || true && \
     python3 -m pip install --no-cache-dir --no-deps /tmp/wheels/torch*.whl && \
     python3 -m pip install --no-cache-dir --no-deps /tmp/wheels/vllm-*.whl || true && \
@@ -276,13 +277,11 @@ COPY _wheelhouse/ /tmp/wheels/
 
 # ✅ 优先装你自编的 torch，避免被 PyPI 上的覆盖
 RUN ls -lh /tmp/wheels && \
-    # rm -f /tmp/wheels/torch-2.7.1a0+*.whl && \
     rm -f /tmp/wheels/huggingface_hub-0.34.4*.whl && \
     python3 -m pip install --no-cache-dir --no-deps /tmp/wheels/torch*.whl && \
     python3 -m pip install --no-cache-dir --no-deps /tmp/wheels/vllm-*.whl && \
     python3 -m pip install --no-cache-dir --no-deps /tmp/wheels/sgl_kernel-*.whl && \
     python3 -m pip install --no-cache-dir --no-deps /tmp/wheels/gradio-5.38.2*.whl && \
-    # python3 -m pip install --no-cache-dir --no-deps $(ls /tmp/wheels | grep -v '^gradio-' | sed 's|^|/tmp/wheels/|') && \
     python3 -m pip install --no-cache-dir --no-deps $(find /tmp/wheels -maxdepth 1 -type f -name '*.whl' ! -name 'gradio-*') && \
     python3 -c "import gradio, sys; print('✅ Gradio version =', gradio.__version__)" && \
     rm -rf /tmp/wheels