C++: Add change note.

MathiasVP · MathiasVP · commit 08a6b99cfd43 · 2026-01-16T12:41:20.000Z
diff --git a/cpp/ql/lib/change-notes/2026-01-16-barrier-guard-conflation.md b/cpp/ql/lib/change-notes/2026-01-16-barrier-guard-conflation.md
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+---
+category: fix
+---
+* Fixed a bug in the `DataFlow::BarrierGuard<...>::getABarrierNode` predicate which caused the predicate to return `DataFlow::Node`s with incorrect indirections. If you use `getABarrierNode` to implement barriers in a dataflow/taint-tracking query it may result in more query results. You can use `DataFlow::BarrierGuard<...>::getAnIndirectBarrierNode` to remove those query results.

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 +---
 +category: fix
 +---
 +* Fixed a bug in the `DataFlow::BarrierGuard<...>::getABarrierNode` predicate which caused the predicate to return `DataFlow::Node`s with incorrect indirections. If you use `getABarrierNode` to implement barriers in a dataflow/taint-tracking query it may result in more query results. You can use `DataFlow::BarrierGuard<...>::getAnIndirectBarrierNode` to remove those query results.