chore: Revert "bump sglang version for 0.6.1 dynamo release (#3911)" (#3994)

Author: nv-tusharma

container/Dockerfile.sglang

@@ -48,7 +48,7 @@ ARG DEEPEP_GB_COMMIT=1b14ad661c7640137fcfe93cccb2694ede1220b0
 ARG CMAKE_BUILD_PARALLEL_LEVEL=2
 ARG FLASHMLA_COMMIT=1408756a88e52a25196b759eaf8db89d2b51b5a1
 ARG SGL_KERNEL_VERSION=0.3.15
-ARG SGLANG_COMMIT=0.5.4.post1
+ARG SGLANG_COMMIT=0.5.3.post2
 ARG GDRCOPY_COMMIT=v2.4.4
 ARG NVSHMEM_VERSION=3.3.9
 ARG GRACE_BLACKWELL=false

container/Dockerfile.sglang-wideep

@@ -1,7 +1,7 @@
 # SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-ARG SGLANG_IMAGE_TAG="v0.5.4.post1"
+ARG SGLANG_IMAGE_TAG="v0.5.3.post2"
 ARG BRANCH_TYPE
 ARG CARGO_BUILD_JOBS
 

docs/backends/sglang/README.md

@@ -120,8 +120,8 @@ cd $DYNAMO_HOME
 # installs sglang supported version along with dynamo
 # include the prerelease flag to install flashinfer rc versions
 uv pip install -e .
-# install any sglang version >= 0.5.4.post1
-uv pip install "sglang[all]==0.5.4.post1"
+# install any sglang version >= 0.5.3.post2
+uv pip install "sglang[all]==0.5.3.post2"
 ```
 
 </details>

pyproject.toml

@@ -61,7 +61,7 @@ vllm = [
 sglang = [
     "uvloop",
     "nixl<=0.7.0",
-    "sglang[all]==0.5.4.post1",
+    "sglang[all]==0.5.3.post2",
 ]
 
 [dependency-groups]