docs: add release-note fragment for PR #2119

llm-d-router-release-notes[bot] · llm-d-router-release-notes[bot] · commit e373881c10d5 · 2026-07-21T21:16:05.000Z
Signed-off-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/2119.md b/release-notes.d/unreleased/2119.md
@@ -0,0 +1,7 @@
+---
+pr: 2119
+url: https://github.com/llm-d/llm-d-router/pull/2119
+author: LukeAVanDrie
+date: 2026-07-21
+---
+The fairness_id metric label is now capped at 1000 distinct values; additional fairness IDs are reported under the `other` label value. Flow control metric series for a fairness ID are removed when its flow is garbage collected. This bounds EPP memory and metrics-pipeline load, which were previously unbounded because the label derives from a client-controlled header.
