[PATCH v2 4/4] NEWS: document support for dirty-limit live migration

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Signed-off-by: Hyman Huang <yong.huang@xxxxxxxxxx>
---
 NEWS.rst | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/NEWS.rst b/NEWS.rst
index dc40602c72..4d1ff489b0 100644
--- a/NEWS.rst
+++ b/NEWS.rst
@@ -17,6 +17,14 @@ v10.0.0 (unreleased)
 
 * **New features**
 
+  * QEMU: Support dirty-limit live migration
+
+    Introduce ``VIR_MIGRATE_DIRTY_LIMIT`` flag for live migration API,
+    which can enable the dirty-limit convergence algorithm during live
+    migration and reap more stable read performance for guest vCPUs.
+
+    Also, add the corresponding ``--dirty-limit`` option to ``virsh migrate``.
+
 * **Improvements**
 
 * **Bug fixes**
-- 
2.39.1
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