chore: bump sgl-kernel version to 0.3.20 (#15590)

Co-authored-by: sglang-bot <sglang-bot@users.noreply.github.com>

docker/Dockerfile

@@ -11,7 +11,7 @@ ARG GRACE_BLACKWELL_DEEPEP_BRANCH=gb200_blog_part_2
 ARG HOPPER_SBO_DEEPEP_COMMIT=9f2fc4b3182a51044ae7ecb6610f7c9c3258c4d6
 ARG DEEPEP_COMMIT=9af0e0d0e74f3577af1979c9b9e1ac2cad0104ee
 ARG BUILD_AND_DOWNLOAD_PARALLEL=8
-ARG SGL_KERNEL_VERSION=0.3.19
+ARG SGL_KERNEL_VERSION=0.3.20
 ARG SGL_VERSION=0.5.6.post2
 ARG USE_LATEST_SGLANG=0
 ARG GDRCOPY_VERSION=2.5.1

python/pyproject.toml

@@ -58,7 +58,7 @@ dependencies = [
   "scipy",
   "sentencepiece",
   "setproctitle",
-  "sgl-kernel==0.3.19",
+  "sgl-kernel==0.3.20",
   "soundfile==0.13.1",
   "tiktoken",
   "timm==1.0.16",

python/sglang/srt/entrypoints/engine.py

@@ -845,7 +845,7 @@ def _set_envs_and_config(server_args: ServerArgs):
         if _is_cuda:
             assert_pkg_version(
                 "sgl-kernel",
-                "0.3.19",
+                "0.3.20",
                 "Please reinstall the latest version with `pip install sgl-kernel --force-reinstall`",
             )