diff --git a/stacks/flash-next-seat/README.md b/stacks/flash-next-seat/README.md
index 92a4c1e..4039f6c 100644
--- a/stacks/flash-next-seat/README.md
+++ b/stacks/flash-next-seat/README.md
@@ -17,6 +17,15 @@ stream with async prefetch.
 | Speculative decoding | **MTP k=3** — 60.4% acceptance, mean acceptance length 2.81 (measured here, n=5) |
 | Gateway wiring | **8 aliases** — gen, gen-reasoning, summarizer(-large), classifier, chat-judge, image-judge, qwen-image-bench |
 
+> **Upstream check, 2026-09-26:** orcarouter's only commit since our 2026-09-14
+> download (`c1209bda`) is `38efbff` (2026-09-18). It **adds `repack_sm70.py`**, a
+> helper that repacks the model for V100 (experts-only NVFP4, bf16 elsewhere), and
+> nothing else. Every weight, config and card file has the same content hash, so
+> there is nothing to adopt. Upstream still ships a bf16 PLE and
+> `qwen_sparse_attention` layer names, so both in-house fixes below remain
+> required. Re-check with the HF tree API (`/api/models/<repo>/tree/<rev>`,
+> gated, needs `$HF_TOKEN`) rather than re-downloading.
+
 ## Deploy
 
 ```bash