diff --git a/src/contracts/KeysManager.contract.js b/src/contracts/KeysManager.contract.js
index 2f7f98b..eac2eb3 100644
--- a/src/contracts/KeysManager.contract.js
+++ b/src/contracts/KeysManager.contract.js
@@ -1,7 +1,7 @@
 import KeysManagerAbi from './keysManager.abi.json'
 import Web3 from 'web3';
 
-const KEYS_MANAGER_ADDRESS = '0x88a34124bfffa27ef3e052c8dd2908e212643771';
+const KEYS_MANAGER_ADDRESS = '0xfc90125492e58dbfe80c0bfb6a2a759c4f703ca8';
 export default class KeysManager {
   constructor(){
     if(window.web3.currentProvider){
diff --git a/src/contracts/Metadata.contract.js b/src/contracts/Metadata.contract.js
index ca84f2d..635fe51 100644
--- a/src/contracts/Metadata.contract.js
+++ b/src/contracts/Metadata.contract.js
@@ -17,7 +17,7 @@ var toAscii = function(hex) {
   return str;
 };
 
-const METADATA_ADDRESS = '0xfda8a3536aa1bb69073259d305fd22fcec368b71';
+const METADATA_ADDRESS = '0xa1b344ee240564f61117f2dbf999547ad4b871ed';
 export default class Metadata {
   constructor(){
     if(window.web3.currentProvider){
diff --git a/src/contracts/metadata.abi.json b/src/contracts/metadata.abi.json
index 46fc39d..dfa5f5e 100644
--- a/src/contracts/metadata.abi.json
+++ b/src/contracts/metadata.abi.json
@@ -56,12 +56,7 @@
   },
   {
     "constant": true,
-    "inputs": [
-      {
-        "name": "_miningKey",
-        "type": "address"
-      }
-    ],
+    "inputs": [],
     "name": "getBallotsStorage",
     "outputs": [
       {
@@ -101,48 +96,14 @@
       }
     ],
     "name": "finalize",
-    "outputs": [
-      {
-        "name": "",
-        "type": "address"
-      }
-    ],
+    "outputs": [],
     "payable": false,
     "stateMutability": "nonpayable",
     "type": "function"
   },
   {
     "constant": true,
-    "inputs": [
-      {
-        "name": "_firstName",
-        "type": "bytes32"
-      },
-      {
-        "name": "_lastName",
-        "type": "bytes32"
-      },
-      {
-        "name": "_licenseId",
-        "type": "bytes32"
-      },
-      {
-        "name": "_fullAddress",
-        "type": "string"
-      },
-      {
-        "name": "_state",
-        "type": "bytes32"
-      },
-      {
-        "name": "_zipcode",
-        "type": "uint256"
-      },
-      {
-        "name": "_expirationDate",
-        "type": "uint256"
-      }
-    ],
+    "inputs": [],
     "name": "getTime",
     "outputs": [
       {
@@ -207,56 +168,6 @@
     ],
     "name": "changeRequest",
     "outputs": [
-      {
-        "components": [
-          {
-            "name": "firstName",
-            "type": "bytes32"
-          },
-          {
-            "name": "lastName",
-            "type": "bytes32"
-          },
-          {
-            "name": "licenseId",
-            "type": "bytes32"
-          },
-          {
-            "name": "fullAddress",
-            "type": "string"
-          },
-          {
-            "name": "state",
-            "type": "bytes32"
-          },
-          {
-            "name": "zipcode",
-            "type": "uint256"
-          },
-          {
-            "name": "expirationDate",
-            "type": "uint256"
-          },
-          {
-            "name": "createdDate",
-            "type": "uint256"
-          },
-          {
-            "name": "updatedDate",
-            "type": "uint256"
-          },
-          {
-            "name": "minThreshold",
-            "type": "uint256"
-          },
-          {
-            "name": "requestNonce",
-            "type": "uint256"
-          }
-        ],
-        "name": "",
-        "type": "bool"
-      },
       {
         "name": "",
         "type": "bool"
@@ -268,12 +179,7 @@
   },
   {
     "constant": true,
-    "inputs": [
-      {
-        "name": "_miningKey",
-        "type": "address"
-      }
-    ],
+    "inputs": [],
     "name": "getKeysManager",
     "outputs": [
       {
@@ -294,12 +200,7 @@
       }
     ],
     "name": "confirmPendingChange",
-    "outputs": [
-      {
-        "name": "",
-        "type": "address"
-      }
-    ],
+    "outputs": [],
     "payable": false,
     "stateMutability": "nonpayable",
     "type": "function"
@@ -320,36 +221,7 @@
   },
   {
     "constant": true,
-    "inputs": [
-      {
-        "name": "_firstName",
-        "type": "bytes32"
-      },
-      {
-        "name": "_lastName",
-        "type": "bytes32"
-      },
-      {
-        "name": "_licenseId",
-        "type": "bytes32"
-      },
-      {
-        "name": "_fullAddress",
-        "type": "string"
-      },
-      {
-        "name": "_state",
-        "type": "bytes32"
-      },
-      {
-        "name": "_zipcode",
-        "type": "uint256"
-      },
-      {
-        "name": "_expirationDate",
-        "type": "uint256"
-      }
-    ],
+    "inputs": [],
     "name": "getMinThreshold",
     "outputs": [
       {
@@ -371,6 +243,26 @@
       {
         "name": "_voter",
         "type": "address"
+      },
+      {
+        "name": "_licenseId",
+        "type": "bytes32"
+      },
+      {
+        "name": "_fullAddress",
+        "type": "string"
+      },
+      {
+        "name": "_state",
+        "type": "bytes32"
+      },
+      {
+        "name": "_zipcode",
+        "type": "uint256"
+      },
+      {
+        "name": "_expirationDate",
+        "type": "uint256"
       }
     ],
     "name": "isAddressAlreadyVoted",
@@ -476,10 +368,6 @@
       {
         "name": "minThreshold",
         "type": "uint256"
-      },
-      {
-        "name": "requestNonce",
-        "type": "uint256"
       }
     ],
     "payable": false,
diff --git a/src/contracts/poaConsensus.abi.json b/src/contracts/poaConsensus.abi.json
index 9a7768a..4f1944d 100644
--- a/src/contracts/poaConsensus.abi.json
+++ b/src/contracts/poaConsensus.abi.json
@@ -18,6 +18,25 @@
     "stateMutability": "view",
     "type": "function"
   },
+  {
+    "constant": true,
+    "inputs": [
+      {
+        "name": "_newAddress",
+        "type": "address"
+      }
+    ],
+    "name": "getCurrentValidatorsLength",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
   {
     "constant": false,
     "inputs": [
@@ -41,19 +60,33 @@
       }
     ],
     "name": "removeValidator",
-    "outputs": [],
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
     "payable": false,
     "stateMutability": "nonpayable",
     "type": "function"
   },
   {
     "constant": true,
-    "inputs": [],
+    "inputs": [
+      {
+        "name": "",
+        "type": "address"
+      }
+    ],
     "name": "currentValidatorsLength",
     "outputs": [
       {
         "name": "",
         "type": "uint256"
+      },
+      {
+        "name": "index",
+        "type": "uint256"
       }
     ],
     "payable": false,
@@ -99,7 +132,12 @@
   },
   {
     "constant": true,
-    "inputs": [],
+    "inputs": [
+      {
+        "name": "_validator",
+        "type": "address"
+      }
+    ],
     "name": "getVotingToChangeKeys",
     "outputs": [
       {
@@ -127,9 +165,19 @@
   },
   {
     "constant": false,
-    "inputs": [],
+    "inputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
     "name": "finalizeChange",
-    "outputs": [],
+    "outputs": [
+      {
+        "name": "",
+        "type": "address"
+      }
+    ],
     "payable": false,
     "stateMutability": "nonpayable",
     "type": "function"
@@ -239,7 +287,12 @@
   },
   {
     "constant": true,
-    "inputs": [],
+    "inputs": [
+      {
+        "name": "_someone",
+        "type": "address"
+      }
+    ],
     "name": "masterOfCeremony",
     "outputs": [
       {
@@ -252,34 +305,42 @@
     "type": "function"
   },
   {
-    "constant": true,
     "inputs": [
       {
         "name": "_someone",
         "type": "address"
       }
     ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function",
+    "constant": true,
     "name": "isValidator",
     "outputs": [
       {
         "name": "",
         "type": "bool"
       }
-    ],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
+    ]
   },
   {
+    "anonymous": false,
     "inputs": [
       {
+        "indexed": true,
         "name": "_masterOfCeremony",
         "type": "address"
+      },
+      {
+        "indexed": false,
+        "name": "newSet",
+        "type": "address[]"
       }
     ],
+    "name": "InitiateChange",
+    "type": "constructor",
     "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "constructor"
+    "stateMutability": "nonpayable"
   },
   {
     "anonymous": false,
@@ -305,6 +366,11 @@
         "indexed": false,
         "name": "newSet",
         "type": "address[]"
+      },
+      {
+        "indexed": false,
+        "name": "newAddress",
+        "type": "address"
       }
     ],
     "name": "ChangeFinalized",