docs: add release-note fragment for PR #2142 (#2186)

llm-d-router-release-notes[bot] · web-flow · commit 6181fd96025a · 2026-07-26T09:03:35.000Z
Signed-off-by: llm-d-router-release-notes[bot] &lt;287676111+llm-d-router-release-notes[bot]@users.noreply.github.com&gt;
Co-authored-by: llm-d-router-release-notes[bot] &lt;287676111+llm-d-router-release-notes[bot]@users.noreply.github.com&gt;
diff --git a/release-notes.d/unreleased/2142.md b/release-notes.d/unreleased/2142.md
@@ -0,0 +1,7 @@
+---
+pr: 2142
+url: https://github.com/llm-d/llm-d-router/pull/2142
+author: zdtsw
+date: 2026-07-26
+---
+The pd-sidecar `--vllm-port` flag is deprecated in favor of the vendor-neutral `--model-server-port` and will be removed in a future release. `--vllm-port` continues to work as an alias meanwhile. The same rename applies to the sidecar YAML configuration key: `vllm-port` -> `model-server-port`.
