diff --git a/patch.py b/patch.py
index b836f72b..b19ce837 100644
--- a/patch.py
+++ b/patch.py
@@ -1,19 +1,40 @@
 import json
 import subprocess
+from hashlib import sha256
 
 # This script will:
 # - read current version
 # - increment patch version
 # - update version in a few places
 # - insert new line in ripme.json with message
+# - build ripme
+# - add the hash of the lastest binary to ripme.json
 
 message = input('message: ')
 
-with open('ripme.json') as dataFile:
-    ripmeJson = json.load(dataFile)
-currentVersion = ripmeJson["latestVersion"]
+def get_ripme_json():
+    with open('ripme.json') as dataFile:
+        ripmeJson = json.load(dataFile)
+    return ripmeJson
 
-print ('Current version ' + currentVersion)
+def update_hash(current_hash):
+    ripmeJson = get_ripme_json()
+    with open('ripme.json', 'w') as dataFile:
+        ripmeJson["currentHash"] = current_hash
+        print(ripmeJson["currentHash"])
+        json.dump(ripmeJson, dataFile, indent=4)
+
+def update_change_list(message):
+    ripmeJson = get_ripme_json()
+    with open('ripme.json', 'w') as dataFile:
+        ripmeJson["changeList"] = ripmeJson["changeList"].insert(0, message)
+        print(ripmeJson["currentHash"])
+        json.dump(ripmeJson, dataFile, indent=4)
+
+
+currentVersion = get_ripme_json()["latestVersion"]
+
+print('Current version ' + currentVersion)
 
 versionFields = currentVersion.split('.')
 patchCur = int(versionFields[2])
@@ -22,14 +43,14 @@ majorMinor = versionFields[:2]
 majorMinor.append(str(patchNext))
 nextVersion = '.'.join(majorMinor)
 
-print ('Updating to ' + nextVersion)
+print('Updating to ' + nextVersion)
 
 substrExpr = 's/' + currentVersion + '/' + nextVersion + '/'
 subprocess.call(['sed', '-i', '-e', substrExpr, 'src/main/java/com/rarchives/ripme/ui/UpdateUtils.java'])
 subprocess.call(['git', 'grep', 'DEFAULT_VERSION.*' + nextVersion,
                  'src/main/java/com/rarchives/ripme/ui/UpdateUtils.java'])
 
-substrExpr = 's/\\\"latestVersion\\\": \\\"' + currentVersion + '\\\"/\\\"latestVersion\\\": \\\"' +\
+substrExpr = 's/\\\"latestVersion\\\": \\\"' + currentVersion + '\\\"/\\\"latestVersion\\\": \\\"' + \
              nextVersion + '\\\"/'
 subprocess.call(['sed', '-i', '-e', substrExpr, 'ripme.json'])
 subprocess.call(['git', 'grep', 'latestVersion', 'ripme.json'])
@@ -51,6 +72,15 @@ dataFile = open("ripme.json", "w")
 dataFile.write(outputContent)
 dataFile.close()
 
-subprocess.call(['git', 'add', '-u'])
-subprocess.call(['git', 'commit', '-m', commitMessage])
-subprocess.call(['git', 'tag', nextVersion])
+# subprocess.call(['git', 'add', '-u'])
+# subprocess.call(['git', 'commit', '-m', commitMessage])
+# subprocess.call(['git', 'tag', nextVersion])
+print("Building ripme")
+subprocess.call(["mvn", "clean", "compile", "assembly:single"])
+print("Hashing .jar file")
+openedFile = open("./target/ripme-{}-jar-with-dependencies.jar".format(nextVersion), "rb")
+readFile = openedFile.read()
+file_hash = sha256(readFile).hexdigest()
+print("Hash is: {}".format(file_hash))
+print("Updating hash")
+update_hash(file_hash)
\ No newline at end of file
diff --git a/src/main/java/com/rarchives/ripme/ui/UpdateUtils.java b/src/main/java/com/rarchives/ripme/ui/UpdateUtils.java
index 3d9fed98..a312ef60 100644
--- a/src/main/java/com/rarchives/ripme/ui/UpdateUtils.java
+++ b/src/main/java/com/rarchives/ripme/ui/UpdateUtils.java
@@ -1,13 +1,12 @@
 package com.rarchives.ripme.ui;
 
-import java.io.BufferedWriter;
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.FileWriter;
-import java.io.IOException;
+import java.io.*;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
 
 import javax.swing.JLabel;
 import javax.swing.JOptionPane;
+import javax.xml.bind.annotation.adapters.HexBinaryAdapter;
 
 import org.apache.log4j.Logger;
 import org.json.JSONArray;
@@ -21,7 +20,7 @@ import com.rarchives.ripme.utils.Utils;
 public class UpdateUtils {
 
     private static final Logger logger = Logger.getLogger(UpdateUtils.class);
-    private static final String DEFAULT_VERSION = "1.7.48";
+    private static final String DEFAULT_VERSION = "1.7.49";
     private static final String REPO_NAME = "ripmeapp/ripme";
     private static final String updateJsonURL = "https://raw.githubusercontent.com/" + REPO_NAME + "/master/ripme.json";
     private static final String mainFileName = "ripme.jar";
@@ -73,7 +72,7 @@ public class UpdateUtils {
         }
 
         String latestVersion = json.getString("latestVersion");
-        if (UpdateUtils.isNewerVersion(latestVersion)) {
+        if (!UpdateUtils.isNewerVersion(latestVersion)) {
             logger.info("Found newer version: " + latestVersion);
             int result = JOptionPane.showConfirmDialog(
                     null,
@@ -141,6 +140,30 @@ public class UpdateUtils {
         return intVersions;
     }
 
+    // Code take from https://stackoverflow.com/a/30925550
+    private static String createSha256(File file)  {
+        try {
+            MessageDigest digest = MessageDigest.getInstance("SHA-256");
+            InputStream fis = new FileInputStream(file);
+            int n = 0;
+            byte[] buffer = new byte[8192];
+            while (n != -1) {
+                n = fis.read(buffer);
+                if (n > 0) {
+                    digest.update(buffer, 0, n);
+                }
+            }
+            return new HexBinaryAdapter().marshal(digest.digest());
+        } catch (NoSuchAlgorithmException e) {
+            logger.error("Got error getting file hash " + e.getMessage());
+        } catch (FileNotFoundException e) {
+            logger.error("Could not find file: " + file.getName());
+        } catch (IOException e) {
+            logger.error("Got error getting file hash " + e.getMessage());
+        }
+        return null;
+    }
+
     private static void downloadJarAndLaunch(String updateJarURL)
             throws IOException {
         Response response;
@@ -155,6 +178,8 @@ public class UpdateUtils {
         }
 
         logger.info("Download of new version complete; saved to " + updateFileName);
+        logger.info("Checking hash of update");
+        logger.info("Hash: " + createSha256(new File(updateFileName)));
 
         // Setup updater script
         final String batchFile, script;