docs(changelog): add entry for ValidationPipeline concurrency fix #7623

ISSUES CLOSED: #7623
2026-04-13 04:35:33 +00:00
parent 284f80e7c1
commit 642ace361b
1 changed files with 6 additions and 0 deletions
@@ -249,6 +249,12 @@ The format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).

 ### Fixed

+- **ValidationPipeline Concurrency Bug** (#7623): Fixed a race condition in
+  `ValidationPipeline.run()` where concurrent pipeline executions would corrupt global
+  `sys.stdout` and `sys.stderr` state. The fix uses reference counting with a threading
+  lock to safely share thread-local stream wrappers across concurrent pipelines, preventing
+  double-wrapping and ensuring proper restoration of original streams.
+
 - `LangChainChatProvider.name` and `model_id` are now mutable properties with setters,
  fixing an `AttributeError` when `PlanService` attempted to resolve provider names after
  instantiation. (#1553)