diff --git a/src/net/knarcraft/serverlauncher/profile/Profile.java b/src/net/knarcraft/serverlauncher/profile/Profile.java
index 7869f87..26c09c2 100644
--- a/src/net/knarcraft/serverlauncher/profile/Profile.java
+++ b/src/net/knarcraft/serverlauncher/profile/Profile.java
@@ -1,5 +1,8 @@
 package net.knarcraft.serverlauncher.profile;
 
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
 import net.knarcraft.serverlauncher.server.AdvancedServerType;
 import net.knarcraft.serverlauncher.server.Server;
 import net.knarcraft.serverlauncher.server.ServerType;
@@ -367,8 +370,10 @@ public class Profile {
                                 "Error",
                                 JOptionPane.ERROR_MESSAGE
                         );
-                        throw new FileNotFoundException("Unable to save to the profiles file.");
+                    } else {
+                        System.out.println("Unable to save to file. Try running the software as an administrator.");
                     }
+                    throw new FileNotFoundException("Unable to save to the profiles file.");
                 }
             }
         } catch (IOException e) {
@@ -514,9 +519,17 @@ public class Profile {
         }
         try {
             downloadAll();
-            gui.setStatus("Finished downloading jars");
+            printToGui("Finished downloading jars");
         } catch (FileNotFoundException e) {
-            gui.setStatus("One or more downloads failed: " + e.getMessage());
+            printToGui("One or more downloads failed: " + e.getMessage());
+        }
+    }
+
+    private static void printToGui(String str) {
+        if (gui != null) {
+            gui.setStatus(str);
+        } else {
+            System.out.println(str);
         }
     }
 
@@ -531,18 +544,25 @@ public class Profile {
             AdvancedServerType advType = type instanceof AdvancedServerType ? (AdvancedServerType) type : null;
             for (String version : type.getVersions()) {
                 Boolean success;
-                if (gui != null) {
-                    gui.setStatus("Downloading: " + name + version + ".jar");
-                }
+                printToGui("Downloading: " + name + version + ".jar");
                 File file = new File(jarDir + type.getName() + version + ".jar");
                 Path filePath = Paths.get(jarDir + type.getName() + version + ".jar");
                 switch (type.getName()) {
                     case "Vanilla":
                     case "Snapshot":
                         if (version.equals("Latest")) {
-                            newestVersion = stringBetween(readFile(Objects.requireNonNull(advType).getVersionURL()), advType.getSrcStart(), advType.getSrcEnd());
-                            setVersion(name, newestVersion);
-                            success = (file.isFile() && newestVersion.equals(getVersion(name))) || downloadFile(url + newestVersion + advType.getDownloadURLPart() + newestVersion + ".jar", filePath);
+                            String versionText = readFile(Objects.requireNonNull(advType).getVersionURL());
+                            JsonObject jsonObject = new JsonParser().parse(versionText).getAsJsonObject();
+                            String latest = jsonObject.getAsJsonObject("latest").get("release").getAsString();
+                            JsonElement ver = jsonObject.getAsJsonArray("versions").get(0);
+                            String versionFile = ver.getAsJsonObject().get("url").getAsString();
+
+                            versionText = readFile(versionFile);
+                            jsonObject = new JsonParser().parse(versionText).getAsJsonObject();
+                            String jarFile = jsonObject.getAsJsonObject("downloads").getAsJsonObject("server").get("url").getAsString();
+
+                            setVersion(name, latest);
+                            success = (file.isFile() && latest.equals(getVersion(name))) || downloadFile(jarFile, filePath);
                         } else {
                             success = file.isFile() || downloadFile(url + version + Objects.requireNonNull(advType).getDownloadURLPart() + version + ".jar", filePath);
                         }
@@ -565,9 +585,7 @@ public class Profile {
                         success = true;
                 }
                 if (!success) {
-                    if (gui != null) {
-                        gui.setStatus("Error downloading: " + name + version + ".jar");
-                    }
+                    printToGui("Error downloading: " + name + version + ".jar");
                     throw new FileNotFoundException("Error downloading: " + name + version + ".jar");
                 }
             }
diff --git a/src/net/knarcraft/serverlauncher/server/Server.java b/src/net/knarcraft/serverlauncher/server/Server.java
index 3c30cfa..a7fa653 100644
--- a/src/net/knarcraft/serverlauncher/server/Server.java
+++ b/src/net/knarcraft/serverlauncher/server/Server.java
@@ -1,16 +1,19 @@
 package net.knarcraft.serverlauncher.server;
 
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
 import net.knarcraft.serverlauncher.Main;
 import net.knarcraft.serverlauncher.profile.Collection;
 import net.knarcraft.serverlauncher.profile.Profile;
+
 import java.io.*;
-import java.nio.file.*;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.concurrent.TimeUnit;
 
-import static net.knarcraft.serverlauncher.Shared.downloadFile;
-import static net.knarcraft.serverlauncher.Shared.readFile;
-import static net.knarcraft.serverlauncher.Shared.stringBetween;
+import static net.knarcraft.serverlauncher.Shared.*;
 
 
 /**
@@ -275,6 +278,7 @@ public class Server {
                     this.downloadJar();
                     Profile.getGUI().setStatus("File downloaded");
                 } catch (FileNotFoundException e) {
+                    System.out.println(e.getMessage());
                     Profile.getGUI().setStatus("Error: Jar file not found");
                     e.printStackTrace();
                     this.started = false;
@@ -374,10 +378,24 @@ public class Server {
                     } catch (IOException e) {
                         throw new FileNotFoundException("Version file could not be downloaded.");
                     }
-                    newestVersion = stringBetween(versionText, type.getSrcStart(), type.getSrcEnd());
-                    if (!file.isFile() || !newestVersion.equals(this.getVersion(name))) {
-                        this.setVersion(name, newestVersion);
-                        if (!downloadFile(url + newestVersion + type.getDownloadURLPart() + newestVersion + ".jar", filePath)) {
+                    JsonObject jsonObject = new JsonParser().parse(versionText).getAsJsonObject();
+                    String latest = jsonObject.getAsJsonObject("latest").get("release").getAsString();
+                    JsonElement verElem = jsonObject.getAsJsonArray("versions").get(0);
+                    String versionFile = verElem.getAsJsonObject().get("url").getAsString();
+
+                    try {
+                        versionText = readFile(versionFile);
+                    } catch (IOException e) {
+                        throw new FileNotFoundException("Version file could not be downloaded.");
+                    }
+
+                    if (!file.isFile() || !latest.equals(this.getVersion(name))) {
+                        this.setVersion(name, latest);
+
+                        jsonObject = new JsonParser().parse(versionText).getAsJsonObject();
+                        String jarFile = jsonObject.getAsJsonObject("downloads").getAsJsonObject("server").get("url").getAsString();
+
+                        if (!downloadFile(jarFile, filePath)) {
                             throw new FileNotFoundException("Jar file could not be downloaded.");
                         }
                     }
diff --git a/test/DownloadTests.java b/test/DownloadTests.java
index 9edae37..ab03d70 100644
--- a/test/DownloadTests.java
+++ b/test/DownloadTests.java
@@ -1,6 +1,6 @@
 import net.knarcraft.serverlauncher.profile.Profile;
 import net.knarcraft.serverlauncher.server.ServerType;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import javax.naming.ConfigurationException;
 import java.io.IOException;
diff --git a/test/Tests.java b/test/Tests.java
index 2f12cd2..69ca567 100644
--- a/test/Tests.java
+++ b/test/Tests.java
@@ -1,12 +1,12 @@
 import net.knarcraft.serverlauncher.profile.Profile;
 import net.knarcraft.serverlauncher.server.ServerType;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import javax.naming.ConfigurationException;
 import java.io.FileNotFoundException;
 
 import static net.knarcraft.serverlauncher.Shared.stringBetween;
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class Tests {
     @Test