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diff --git a/RELEASE.md b/RELEASE.md
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--- a/RELEASE.md
+++ b/RELEASE.md
@@ -1,3 +1,30 @@
+# 2.5.1
+## Mappings between Driver and OpenStack versions
+
+| OpenStack |Mitaka|Newton|Train|Ussuri|Victoria|Wallaby|Xena|Yoga|
+|---|---|---|---|---|---|---|---|---|
+|Cinder Driver|√|\*|√|√|√|√|√|√|
+|Manila Driver|x|x|√|√|√|√|√|√|
+
+We have tested OpenStack Newton with OceanStor Dorado V6 6.1.3
+## Version mappings among Cinder Driver, Huawei storage, and OpenStack
+| OpenStack |Huawei Storage|
+|---|---|
+|Cinder Driver|OceanStor V3 V300R006C60/V300R006C61|
+| |OceanStor V5 V500R007C61/V500R007C70/V500R007C71 |
+| |OceanStor V6 6.1.3|
+| |OceanStor Dorado V3 V300R002C10/V300R002C20|
+| |OceanStor Dorado V6 6.1.0/6.1.2/6.1.3|
+
+## Version mappings among Manila Driver, Huawei storage, and OpenStack
+| OpenStack |Huawei Storage|
+|---|---|
+|Manila Driver|OceanStor V3/F V3 V300R006C60/V300R006C61|
+| |OceanStor V5/F V5 V500R007C61/V500R007C70|
+| |OceanStor V6 6.1.3|
+| |OceanStor Dorado V3 V300R002C10/V300R002C20|
+| |OceanStor Dorado V6 6.1.0/6.1.2/6.1.3|
+
 # 2.3.4
 ## Mappings between Driver and OpenStack versions