diff --git a/release-notes.d/unreleased/1991.md b/release-notes.d/unreleased/1991.md
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+---
+pr: 1991
+url: https://github.com/llm-d/llm-d-router/pull/1991
+author: asharkhan3101
+date: 2026-07-23
+---
+concurrency-detector(hybrid): new concurrency mode has been added which takes into account both concurrency based on token and request for saturation.