diff --git a/include/wsrep/key.hpp b/include/wsrep/key.hpp
index d6d5b50..fb0e009 100644
--- a/include/wsrep/key.hpp
+++ b/include/wsrep/key.hpp
@@ -33,8 +33,8 @@ namespace wsrep
         enum type
         {
             shared,
-            semi_shared,
-            semi_exclusive,
+            reference,
+            update,
             exclusive
         };
 
diff --git a/src/wsrep_provider_v26.cpp b/src/wsrep_provider_v26.cpp
index 36a5a13..1e33803 100644
--- a/src/wsrep_provider_v26.cpp
+++ b/src/wsrep_provider_v26.cpp
@@ -73,13 +73,11 @@ namespace
         switch (type)
         {
         case wsrep::key::shared:        return WSREP_KEY_SHARED;
-        case wsrep::key::semi_shared:   return WSREP_KEY_SEMI;
-        case wsrep::key::semi_exclusive:
-            /** @todo Implement semi exclusive in API */
-            assert(0);
-            return WSREP_KEY_EXCLUSIVE;
+        case wsrep::key::reference:     return WSREP_KEY_REFERENCE;
+        case wsrep::key::update:        return WSREP_KEY_UPDATE;
         case wsrep::key::exclusive:     return WSREP_KEY_EXCLUSIVE;
         }
+        assert(0);
         throw wsrep::runtime_error("Invalid key type");
     }
 
diff --git a/wsrep-API/v26 b/wsrep-API/v26
index 57cde3a..f023937 160000
--- a/wsrep-API/v26
+++ b/wsrep-API/v26
@@ -1 +1 @@
-Subproject commit 57cde3a1f15fc42f9f77fdcbb457219cf2bca15b
+Subproject commit f0239371ca91af2a3638b3ed4f4f362903e15efc