From b010dd58d209c4b627587578b13c7c2d3bff8eb2 Mon Sep 17 00:00:00 2001
From: Om Chauhan <omchauhan64408@gmail.com>
Date: Wed, 8 Apr 2026 09:37:58 +0530
Subject: [PATCH] added changelog

---
 changelog/4255.fixed.md | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 changelog/4255.fixed.md

diff --git a/changelog/4255.fixed.md b/changelog/4255.fixed.md
new file mode 100644
index 000000000..2714a16b1
--- /dev/null
+++ b/changelog/4255.fixed.md
@@ -0,0 +1 @@
+- Fixed `PipelineRunner._gc_collect()` blocking the event loop by running `gc.collect()` synchronously. Now offloaded via `asyncio.to_thread` to avoid stalling concurrent pipeline tasks.