chore: upgrade sgl-kernel 0.3.12 (#10782)

python/pyproject.toml

@@ -57,7 +57,7 @@ dependencies = [
   "uvicorn",
   "uvloop",
   "xgrammar==0.1.24",
-  "sgl-kernel==0.3.11",
+  "sgl-kernel==0.3.12",
   "torch==2.8.0",
   "torchaudio==2.8.0",
   "torchvision",

python/pyproject_other.toml

@@ -65,7 +65,7 @@ tracing = [
 
 srt = [
     "sglang[runtime_common]",
-    "sgl-kernel==0.3.11",
+    "sgl-kernel==0.3.12",
     "torch==2.8.0",
     "torchaudio==2.8.0",
     "torchvision",
@@ -75,7 +75,7 @@ srt = [
 
 blackwell = [
     "sglang[runtime_common]",
-    "sgl-kernel==0.3.11",
+    "sgl-kernel==0.3.12",
     "torch==2.8.0",
     "torchaudio==2.8.0",
     "torchvision",

python/sglang/srt/entrypoints/engine.py

@@ -711,7 +711,7 @@ def _set_envs_and_config(server_args: ServerArgs):
     if _is_cuda and not get_bool_env_var("SGLANG_SKIP_SGL_KERNEL_VERSION_CHECK"):
         assert_pkg_version(
             "sgl-kernel",
-            "0.3.11",
+            "0.3.12",
             "Please reinstall the latest version with `pip install sgl-kernel --force-reinstall`",
         )