diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 2c7e034..6e5389e 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -7,14 +7,13 @@
         <option name="testRunner" value="GRADLE" />
         <option name="distributionType" value="DEFAULT_WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleJvm" value="1.8" />
+        <option name="gradleJvm" value="Android Studio default JDK" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
             <option value="$PROJECT_DIR$/app" />
           </set>
         </option>
-        <option name="resolveModulePerSourceSet" value="false" />
       </GradleProjectSettings>
     </option>
   </component>
diff --git a/.idea/misc.xml b/.idea/misc.xml
index f7be5bf..d55b0cb 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -7,7 +7,7 @@
       </map>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="Android Studio default JDK" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/build.gradle b/app/build.gradle
index ffb4d9b..66039b3 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -10,8 +10,8 @@ android {
         applicationId "org.wildstang.wildrank.android"
         minSdkVersion 21
         targetSdkVersion 30
-        versionCode 5
-        versionName "rc4"
+        versionCode 6
+        versionName "rc5"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
diff --git a/app/src/main/java/org/wildstang/wildrank/android/MainActivity.kt b/app/src/main/java/org/wildstang/wildrank/android/MainActivity.kt
index beb436a..0c73dc6 100644
--- a/app/src/main/java/org/wildstang/wildrank/android/MainActivity.kt
+++ b/app/src/main/java/org/wildstang/wildrank/android/MainActivity.kt
@@ -275,6 +275,9 @@ class MainActivity : AppCompatActivity() {
                 if (page.contains(relStr)) {
                     var latest = page.substring(page.indexOf(relStr) + relStr.length)
                     latest = latest.substring(0, latest.indexOf("\""))
+                    if (latest.contains("&")) {
+                        latest = latest.substring(0, latest.indexOf("&"))
+                    }
                     println("[FETCH] Found release $latest")
                     useRelease(latest)
                     return
@@ -299,11 +302,14 @@ class MainActivity : AppCompatActivity() {
         }
 
         // if the desired release does not exist
-        if (!isReleaseCached(release) || release == "master") {
+        if ((!isReleaseCached(release) && release != "master-cached") || release == "master") {
             // download it
             fetchRelease(release)
         }
         else {
+            if (release == "master-cached") {
+                release = "master"
+            }
             // otherwise, start app with release
             startRelease(release)
         }
diff --git a/app/src/main/java/org/wildstang/wildrank/android/POSTServer.kt b/app/src/main/java/org/wildstang/wildrank/android/POSTServer.kt
index 67d298f..e806614 100644
--- a/app/src/main/java/org/wildstang/wildrank/android/POSTServer.kt
+++ b/app/src/main/java/org/wildstang/wildrank/android/POSTServer.kt
@@ -38,7 +38,7 @@ class POSTServer(directory: String, apiKey: String) : NanoHTTPD(8080) {
         println("Request: $request")
 
         // get upload directory
-        val uploadDir = File(directory, "uploads")
+        var uploadDir = File(directory, "uploads")
         uploadDir.mkdirs()
 
         // save posted files to /uploads
@@ -67,6 +67,12 @@ class POSTServer(directory: String, apiKey: String) : NanoHTTPD(8080) {
                         file += ".json"
                     }
 
+                    // handle incoming configs by backing up
+                    if (file.endsWith("config.json")) {
+                        uploadDir = File(directory, "config")
+                        File(uploadDir, file).renameTo(File(uploadDir, "$file.bkp"))
+                    }
+
                     // write JSON to file
                     val writer = FileWriter(File(uploadDir, file))
                     writer.write(content)
diff --git a/app/src/main/java/org/wildstang/wildrank/android/ReleaseDialog.kt b/app/src/main/java/org/wildstang/wildrank/android/ReleaseDialog.kt
index bd5ea6f..1ada1b4 100644
--- a/app/src/main/java/org/wildstang/wildrank/android/ReleaseDialog.kt
+++ b/app/src/main/java/org/wildstang/wildrank/android/ReleaseDialog.kt
@@ -14,7 +14,10 @@ class ReleaseDialog : DialogFragment() {
     override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
         return activity?.let {
             val mainActivity = (activity as MainActivity)
-            val lastUsed = mainActivity.getLastRelease()
+            var lastUsed = mainActivity.getLastRelease()
+            if (lastUsed == "master") {
+                lastUsed = "master-cached"
+            }
 
             // create base list of releases
             val releases = ArrayList<String>()
@@ -48,7 +51,7 @@ class ReleaseDialog : DialogFragment() {
                         1 -> "latest"
                         2 -> "master"
                         releases.size - 1 -> "manual"
-                        else -> releases[which - 3].substring(8)
+                        else -> releases[which].substring(8)
                     }
 
                     if (release != "manual") {
diff --git a/build.gradle b/build.gradle
index 9fde24e..2059557 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.2.1'
+        classpath 'com.android.tools.build:gradle:7.0.3'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 9ca8f33..599a548 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-all.zip