From b227e53ebfea88b0b4063c93cab65aeb2ecfe5dd Mon Sep 17 00:00:00 2001
From: Simo Lin <linsimo.mark@gmail.com>
Date: Thu, 12 Mar 2026 14:25:27 -0700
Subject: [PATCH] feat: add banner to sgl-model-gateway (#20471)

Signed-off-by: Simo Lin <linsimo.mark@gmail.com>
---
 .../python/src/sglang_router/launch_router.py        | 12 ++++++++++++
 sgl-model-gateway/src/main.rs                        | 11 +++++++++++
 2 files changed, 23 insertions(+)

diff --git a/sgl-model-gateway/bindings/python/src/sglang_router/launch_router.py b/sgl-model-gateway/bindings/python/src/sglang_router/launch_router.py
index 506842f84..1c32fc22c 100644
--- a/sgl-model-gateway/bindings/python/src/sglang_router/launch_router.py
+++ b/sgl-model-gateway/bindings/python/src/sglang_router/launch_router.py
@@ -41,6 +41,18 @@ def launch_router(args: argparse.Namespace) -> Optional[Router]:
             mini_lb = MiniLoadBalancer(router_args)
             mini_lb.start()
         else:
+            print(
+                "\n"
+                "==============================================================================\n"
+                "WARNING: This copy of sgl-model-gateway is DEPRECATED and no longer maintained.\n"
+                "The actively maintained version has moved to:\n"
+                "  https://github.com/lightseekorg/smg\n"
+                "\n"
+                "Please migrate to the standalone repository for the latest features,\n"
+                "bug fixes, and security updates.\n"
+                "==============================================================================\n",
+                file=sys.stderr,
+            )
             if Router is None:
                 raise RuntimeError("Rust Router is not installed")
             router_args._validate_router_args()
diff --git a/sgl-model-gateway/src/main.rs b/sgl-model-gateway/src/main.rs
index 3d8b9842f..e3e8622a4 100644
--- a/sgl-model-gateway/src/main.rs
+++ b/sgl-model-gateway/src/main.rs
@@ -1153,6 +1153,17 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         }
     }
 
+    eprintln!("\n{}", "=".repeat(78));
+    eprintln!(
+        "WARNING: This copy of sgl-model-gateway is DEPRECATED and no longer maintained."
+    );
+    eprintln!("The actively maintained version has moved to:");
+    eprintln!("  https://github.com/lightseekorg/smg");
+    eprintln!();
+    eprintln!("Please migrate to the standalone repository for the latest features,");
+    eprintln!("bug fixes, and security updates.");
+    eprintln!("{}\n", "=".repeat(78));
+
     let prefill_urls = parse_prefill_args();
 
     let mut filtered_args: Vec<String> = Vec::new();