diff --git a/include/upgrader/patches/15af7cd3-98ae1ed2.patch.sql b/include/upgrader/patches/15af7cd3-98ae1ed2.patch.sql
new file mode 100644
index 0000000000000000000000000000000000000000..775509266684bec3f34284603fbd69da87f407c2
--- /dev/null
+++ b/include/upgrader/patches/15af7cd3-98ae1ed2.patch.sql
@@ -0,0 +1,8 @@
+/*
+ * @version=1.6RC1-4
+ * 
+ * Stage RC2 for 1.6RC5 upgrade
+ */
+
+UPDATE `%TABLE_PREFIX%config`
+    SET `ostversion`='1.6 RC1-4';
diff --git a/include/upgrader/patches/2e20a0eb-98ae1ed2.patch.sql b/include/upgrader/patches/2e20a0eb-98ae1ed2.patch.sql
new file mode 100644
index 0000000000000000000000000000000000000000..49d1e93623337eebc83463dbfe2c4686d518825e
--- /dev/null
+++ b/include/upgrader/patches/2e20a0eb-98ae1ed2.patch.sql
@@ -0,0 +1,8 @@
+/*
+ * @version=1.6RC1-4
+ * 
+ * Stage RC4 for 1.6RC5 upgrade
+ */
+
+UPDATE `%TABLE_PREFIX%config`
+    SET `ostversion`='1.6 RC1-4';
diff --git a/include/upgrader/patches/a67ba35e-98ae1ed2.patch.sql b/include/upgrader/patches/a67ba35e-98ae1ed2.patch.sql
new file mode 100644
index 0000000000000000000000000000000000000000..750eb1e293b7144565016e1ed5e754e0c9ec36b6
--- /dev/null
+++ b/include/upgrader/patches/a67ba35e-98ae1ed2.patch.sql
@@ -0,0 +1,8 @@
+/*
+ * @version=1.6RC1-4
+ * 
+ * Stage RC3 for 1.6RC5 upgrade
+ */
+
+UPDATE `%TABLE_PREFIX%config`
+    SET `ostversion`='1.6 RC1-4';
diff --git a/include/upgrader/patches/aee589ab-98ae1ed2.patch.sql b/include/upgrader/patches/aee589ab-98ae1ed2.patch.sql
new file mode 100644
index 0000000000000000000000000000000000000000..f786bbb22b34bb33c53c76321be16d558caa3044
--- /dev/null
+++ b/include/upgrader/patches/aee589ab-98ae1ed2.patch.sql
@@ -0,0 +1,8 @@
+/*
+ * @version=1.6RC1-4
+ * 
+ * Stage RC1 for 1.6RC5 upgrade
+ */
+
+UPDATE `%TABLE_PREFIX%config`
+    SET `ostversion`='1.6 RC1-4';