diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0717b432..cd87189e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,7 +15,7 @@ set(CMAKE_CXX_STANDARD 11)
 # Also remember to set PROTOCOL_VERSION in network/networkprotocol.h when releasing
 set(VERSION_MAJOR 1)
 set(VERSION_MINOR 15)
-set(VERSION_PATCH 2)
+set(VERSION_PATCH 6)
 set(VERSION_EXTRA "" CACHE STRING "Stuff to append to version string")
 
 # Change to false for releases
diff --git a/build/android/app/build.gradle b/build/android/app/build.gradle
index 442bc866..42d79f66 100644
--- a/build/android/app/build.gradle
+++ b/build/android/app/build.gradle
@@ -2,14 +2,14 @@ apply plugin: 'com.android.application'
 android {
 	compileSdkVersion 29
 	buildToolsVersion '30.0.3'
-	ndkVersion '22.0.7026061'
+	ndkVersion '22.1.7171670'
 	defaultConfig {
 		applicationId 'com.multicraft.game'
 		minSdkVersion 16
 		//noinspection OldTargetApi
 		targetSdkVersion 29
-		versionCode 135
-		versionName "1.15.1"
+		versionCode 150
+		versionName "1.15.6"
 		multiDexEnabled true
 	}
 
@@ -66,13 +66,14 @@ dependencies {
 	implementation 'androidx.appcompat:appcompat-resources:1.2.0'
 	implementation 'androidx.multidex:multidex:2.0.1'
 	implementation 'androidx.preference:preference:1.1.1'
-	implementation 'io.reactivex.rxjava2:rxjava:2.2.20'
+	implementation 'io.reactivex.rxjava2:rxjava:2.2.21'
 	implementation 'io.reactivex.rxjava2:rxandroid:2.1.1'
 	//noinspection GradleDependency
 	implementation 'com.squareup.okhttp3:okhttp:3.12.12'
 	//noinspection GradleDependency
 	implementation 'commons-io:commons-io:2.5'
 	implementation 'gun0912.ted:tedpermission-rx2:2.2.3'
+	//noinspection GradleDependency
 	implementation 'net.lingala.zip4j:zip4j:2.6.4'
 
 	/* Analytics libraries */
diff --git a/build/android/build.gradle b/build/android/build.gradle
index bc053af4..60161838 100644
--- a/build/android/build.gradle
+++ b/build/android/build.gradle
@@ -3,10 +3,11 @@
 buildscript {
 	repositories {
 		google()
-		jcenter()
+		mavenCentral()
+		maven { url 'https://plugins.gradle.org/m2/' }
 	}
 	dependencies {
-		classpath 'com.android.tools.build:gradle:4.1.2'
+		classpath 'com.android.tools.build:gradle:4.2.0'
 		//noinspection GradleDynamicVersion
 		/*classpath 'com.bugsnag:bugsnag-android-gradle-plugin:5.+'*/
 		classpath 'de.undercouch:gradle-download-task:4.1.1'
@@ -18,7 +19,8 @@ buildscript {
 allprojects {
 	repositories {
 		google()
-		jcenter()
+		mavenCentral()
+		maven { url 'https://plugins.gradle.org/m2/' }
 	}
 }
 
diff --git a/build/android/gradle/wrapper/gradle-wrapper.properties b/build/android/gradle/wrapper/gradle-wrapper.properties
index 4bea75d3..8ab187ef 100644
--- a/build/android/gradle/wrapper/gradle-wrapper.properties
+++ b/build/android/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sat Feb 06 00:00:38 CET 2021
+#Sun May 09 00:39:14 CEST 2021
 distributionBase=GRADLE_USER_HOME
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.9-bin.zip
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
diff --git a/build/android/native/build.gradle b/build/android/native/build.gradle
index 6673e4af..4a343447 100644
--- a/build/android/native/build.gradle
+++ b/build/android/native/build.gradle
@@ -4,7 +4,7 @@ apply plugin: 'de.undercouch.download'
 android {
 	compileSdkVersion 29
 	buildToolsVersion '30.0.3'
-	ndkVersion '22.0.7026061'
+	ndkVersion '22.1.7171670'
 	defaultConfig {
 		minSdkVersion 16
 		//noinspection OldTargetApi
diff --git a/src/client/clientlauncher.cpp b/src/client/clientlauncher.cpp
index aa31d40e..f123e2fc 100644
--- a/src/client/clientlauncher.cpp
+++ b/src/client/clientlauncher.cpp
@@ -182,11 +182,7 @@ bool ClientLauncher::run(GameParams &game_params, const Settings &cmd_args)
 		const wchar_t *text = wgettext("Main Menu");
 		device->setWindowCaption((utf8_to_wide(PROJECT_NAME_C) +
 			L" " + utf8_to_wide(g_version_hash) +
-#if defined(__MACH__) && defined(__APPLE__)
-			L"").c_str());
-#else
 			L" [" + text + L"]").c_str());
-#endif
 		delete[] text;
 
 		try {	// This is used for catching disconnects
diff --git a/src/config.h b/src/config.h
index b5ad11c7..87e7e11c 100644
--- a/src/config.h
+++ b/src/config.h
@@ -18,7 +18,7 @@
 	#define STATIC_SHAREDIR ""
 	#define VERSION_MAJOR 1
 	#define VERSION_MINOR 15
-	#define VERSION_PATCH 2
+	#define VERSION_PATCH 6
 	#define VERSION_STRING STR(VERSION_MAJOR) "." STR(VERSION_MINOR) "." STR(VERSION_PATCH)
 #endif
 
diff --git a/textures/base/bg.png b/textures/base/bg.png
index 55afbb6f..209d3019 100644
Binary files a/textures/base/bg.png and b/textures/base/bg.png differ
diff --git a/textures/base/gui_hotbar.png b/textures/base/gui_hotbar.png
index 92c6eeb3..ba0bdfe5 100644
Binary files a/textures/base/gui_hotbar.png and b/textures/base/gui_hotbar.png differ