diff --git a/BasicRxJavaSample/versions.gradle b/BasicRxJavaSample/versions.gradle
index 8ba66b4d..cb2a476e 100644
--- a/BasicRxJavaSample/versions.gradle
+++ b/BasicRxJavaSample/versions.gradle
@@ -22,7 +22,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.activity = '1.1.0'
-versions.android_gradle_plugin = '4.0.0'
+versions.android_gradle_plugin = '4.2.2'
 versions.annotations = "1.0.0"
 versions.apache_commons = "2.5"
 versions.appcompat = "1.2.0-alpha02"
@@ -31,7 +31,7 @@ versions.atsl_core = "1.3.0"
 versions.atsl_junit = "1.1.2"
 versions.atsl_rules = "1.3.0"
 versions.atsl_runner = "1.3.0"
-versions.benchmark = "1.1.0-alpha01"
+versions.benchmark = "1.1.0-alpha06"
 versions.cardview = "1.0.0"
 versions.constraint_layout = "2.0.0-alpha2"
 versions.core_ktx = "1.1.0"
@@ -39,7 +39,7 @@ versions.coroutines = "1.4.1"
 versions.dagger = "2.16"
 versions.dexmaker = "2.2.0"
 versions.espresso = "3.2.0"
-versions.fragment = "1.2.0"
+versions.fragment = "1.4.0-alpha07"
 versions.glide = "4.8.0"
 versions.hamcrest = "1.3"
 versions.junit = "4.12"
@@ -50,7 +50,7 @@ versions.mockito = "2.25.0"
 versions.mockito_all = "1.10.19"
 versions.mockito_android = "2.25.0"
 versions.mockwebserver = "3.8.1"
-versions.navigation = "2.3.0-alpha01"
+versions.navigation = "2.4.0-alpha07"
 versions.okhttp_logging_interceptor = "3.9.0"
 versions.paging = "3.0.0-beta01"
 versions.recyclerview = "1.2.0-beta01"
@@ -67,7 +67,7 @@ ext.versions = versions
 
 def build_versions = [:]
 build_versions.min_sdk = 14
-build_versions.compile_sdk = 29
+build_versions.compile_sdk = 31
 build_versions.target_sdk = 29
 build_versions.build_tools = "29.0.3"
 ext.build_versions = build_versions
@@ -221,7 +221,7 @@ ext.deps = deps
 
 def addRepos(RepositoryHandler handler) {
     handler.google()
-    handler.jcenter()
+    handler.mavenCentral()
     handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
 }
 ext.addRepos = this.&addRepos
diff --git a/BasicRxJavaSampleKotlin/versions.gradle b/BasicRxJavaSampleKotlin/versions.gradle
index 8ba66b4d..cb2a476e 100644
--- a/BasicRxJavaSampleKotlin/versions.gradle
+++ b/BasicRxJavaSampleKotlin/versions.gradle
@@ -22,7 +22,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.activity = '1.1.0'
-versions.android_gradle_plugin = '4.0.0'
+versions.android_gradle_plugin = '4.2.2'
 versions.annotations = "1.0.0"
 versions.apache_commons = "2.5"
 versions.appcompat = "1.2.0-alpha02"
@@ -31,7 +31,7 @@ versions.atsl_core = "1.3.0"
 versions.atsl_junit = "1.1.2"
 versions.atsl_rules = "1.3.0"
 versions.atsl_runner = "1.3.0"
-versions.benchmark = "1.1.0-alpha01"
+versions.benchmark = "1.1.0-alpha06"
 versions.cardview = "1.0.0"
 versions.constraint_layout = "2.0.0-alpha2"
 versions.core_ktx = "1.1.0"
@@ -39,7 +39,7 @@ versions.coroutines = "1.4.1"
 versions.dagger = "2.16"
 versions.dexmaker = "2.2.0"
 versions.espresso = "3.2.0"
-versions.fragment = "1.2.0"
+versions.fragment = "1.4.0-alpha07"
 versions.glide = "4.8.0"
 versions.hamcrest = "1.3"
 versions.junit = "4.12"
@@ -50,7 +50,7 @@ versions.mockito = "2.25.0"
 versions.mockito_all = "1.10.19"
 versions.mockito_android = "2.25.0"
 versions.mockwebserver = "3.8.1"
-versions.navigation = "2.3.0-alpha01"
+versions.navigation = "2.4.0-alpha07"
 versions.okhttp_logging_interceptor = "3.9.0"
 versions.paging = "3.0.0-beta01"
 versions.recyclerview = "1.2.0-beta01"
@@ -67,7 +67,7 @@ ext.versions = versions
 
 def build_versions = [:]
 build_versions.min_sdk = 14
-build_versions.compile_sdk = 29
+build_versions.compile_sdk = 31
 build_versions.target_sdk = 29
 build_versions.build_tools = "29.0.3"
 ext.build_versions = build_versions
@@ -221,7 +221,7 @@ ext.deps = deps
 
 def addRepos(RepositoryHandler handler) {
     handler.google()
-    handler.jcenter()
+    handler.mavenCentral()
     handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
 }
 ext.addRepos = this.&addRepos
diff --git a/BasicSample/versions.gradle b/BasicSample/versions.gradle
index 8ba66b4d..cb2a476e 100644
--- a/BasicSample/versions.gradle
+++ b/BasicSample/versions.gradle
@@ -22,7 +22,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.activity = '1.1.0'
-versions.android_gradle_plugin = '4.0.0'
+versions.android_gradle_plugin = '4.2.2'
 versions.annotations = "1.0.0"
 versions.apache_commons = "2.5"
 versions.appcompat = "1.2.0-alpha02"
@@ -31,7 +31,7 @@ versions.atsl_core = "1.3.0"
 versions.atsl_junit = "1.1.2"
 versions.atsl_rules = "1.3.0"
 versions.atsl_runner = "1.3.0"
-versions.benchmark = "1.1.0-alpha01"
+versions.benchmark = "1.1.0-alpha06"
 versions.cardview = "1.0.0"
 versions.constraint_layout = "2.0.0-alpha2"
 versions.core_ktx = "1.1.0"
@@ -39,7 +39,7 @@ versions.coroutines = "1.4.1"
 versions.dagger = "2.16"
 versions.dexmaker = "2.2.0"
 versions.espresso = "3.2.0"
-versions.fragment = "1.2.0"
+versions.fragment = "1.4.0-alpha07"
 versions.glide = "4.8.0"
 versions.hamcrest = "1.3"
 versions.junit = "4.12"
@@ -50,7 +50,7 @@ versions.mockito = "2.25.0"
 versions.mockito_all = "1.10.19"
 versions.mockito_android = "2.25.0"
 versions.mockwebserver = "3.8.1"
-versions.navigation = "2.3.0-alpha01"
+versions.navigation = "2.4.0-alpha07"
 versions.okhttp_logging_interceptor = "3.9.0"
 versions.paging = "3.0.0-beta01"
 versions.recyclerview = "1.2.0-beta01"
@@ -67,7 +67,7 @@ ext.versions = versions
 
 def build_versions = [:]
 build_versions.min_sdk = 14
-build_versions.compile_sdk = 29
+build_versions.compile_sdk = 31
 build_versions.target_sdk = 29
 build_versions.build_tools = "29.0.3"
 ext.build_versions = build_versions
@@ -221,7 +221,7 @@ ext.deps = deps
 
 def addRepos(RepositoryHandler handler) {
     handler.google()
-    handler.jcenter()
+    handler.mavenCentral()
     handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
 }
 ext.addRepos = this.&addRepos
diff --git a/GithubBrowserSample/versions.gradle b/GithubBrowserSample/versions.gradle
index 8ba66b4d..cb2a476e 100644
--- a/GithubBrowserSample/versions.gradle
+++ b/GithubBrowserSample/versions.gradle
@@ -22,7 +22,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.activity = '1.1.0'
-versions.android_gradle_plugin = '4.0.0'
+versions.android_gradle_plugin = '4.2.2'
 versions.annotations = "1.0.0"
 versions.apache_commons = "2.5"
 versions.appcompat = "1.2.0-alpha02"
@@ -31,7 +31,7 @@ versions.atsl_core = "1.3.0"
 versions.atsl_junit = "1.1.2"
 versions.atsl_rules = "1.3.0"
 versions.atsl_runner = "1.3.0"
-versions.benchmark = "1.1.0-alpha01"
+versions.benchmark = "1.1.0-alpha06"
 versions.cardview = "1.0.0"
 versions.constraint_layout = "2.0.0-alpha2"
 versions.core_ktx = "1.1.0"
@@ -39,7 +39,7 @@ versions.coroutines = "1.4.1"
 versions.dagger = "2.16"
 versions.dexmaker = "2.2.0"
 versions.espresso = "3.2.0"
-versions.fragment = "1.2.0"
+versions.fragment = "1.4.0-alpha07"
 versions.glide = "4.8.0"
 versions.hamcrest = "1.3"
 versions.junit = "4.12"
@@ -50,7 +50,7 @@ versions.mockito = "2.25.0"
 versions.mockito_all = "1.10.19"
 versions.mockito_android = "2.25.0"
 versions.mockwebserver = "3.8.1"
-versions.navigation = "2.3.0-alpha01"
+versions.navigation = "2.4.0-alpha07"
 versions.okhttp_logging_interceptor = "3.9.0"
 versions.paging = "3.0.0-beta01"
 versions.recyclerview = "1.2.0-beta01"
@@ -67,7 +67,7 @@ ext.versions = versions
 
 def build_versions = [:]
 build_versions.min_sdk = 14
-build_versions.compile_sdk = 29
+build_versions.compile_sdk = 31
 build_versions.target_sdk = 29
 build_versions.build_tools = "29.0.3"
 ext.build_versions = build_versions
@@ -221,7 +221,7 @@ ext.deps = deps
 
 def addRepos(RepositoryHandler handler) {
     handler.google()
-    handler.jcenter()
+    handler.mavenCentral()
     handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
 }
 ext.addRepos = this.&addRepos
diff --git a/LiveDataSample/versions.gradle b/LiveDataSample/versions.gradle
index 8ba66b4d..cb2a476e 100644
--- a/LiveDataSample/versions.gradle
+++ b/LiveDataSample/versions.gradle
@@ -22,7 +22,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.activity = '1.1.0'
-versions.android_gradle_plugin = '4.0.0'
+versions.android_gradle_plugin = '4.2.2'
 versions.annotations = "1.0.0"
 versions.apache_commons = "2.5"
 versions.appcompat = "1.2.0-alpha02"
@@ -31,7 +31,7 @@ versions.atsl_core = "1.3.0"
 versions.atsl_junit = "1.1.2"
 versions.atsl_rules = "1.3.0"
 versions.atsl_runner = "1.3.0"
-versions.benchmark = "1.1.0-alpha01"
+versions.benchmark = "1.1.0-alpha06"
 versions.cardview = "1.0.0"
 versions.constraint_layout = "2.0.0-alpha2"
 versions.core_ktx = "1.1.0"
@@ -39,7 +39,7 @@ versions.coroutines = "1.4.1"
 versions.dagger = "2.16"
 versions.dexmaker = "2.2.0"
 versions.espresso = "3.2.0"
-versions.fragment = "1.2.0"
+versions.fragment = "1.4.0-alpha07"
 versions.glide = "4.8.0"
 versions.hamcrest = "1.3"
 versions.junit = "4.12"
@@ -50,7 +50,7 @@ versions.mockito = "2.25.0"
 versions.mockito_all = "1.10.19"
 versions.mockito_android = "2.25.0"
 versions.mockwebserver = "3.8.1"
-versions.navigation = "2.3.0-alpha01"
+versions.navigation = "2.4.0-alpha07"
 versions.okhttp_logging_interceptor = "3.9.0"
 versions.paging = "3.0.0-beta01"
 versions.recyclerview = "1.2.0-beta01"
@@ -67,7 +67,7 @@ ext.versions = versions
 
 def build_versions = [:]
 build_versions.min_sdk = 14
-build_versions.compile_sdk = 29
+build_versions.compile_sdk = 31
 build_versions.target_sdk = 29
 build_versions.build_tools = "29.0.3"
 ext.build_versions = build_versions
@@ -221,7 +221,7 @@ ext.deps = deps
 
 def addRepos(RepositoryHandler handler) {
     handler.google()
-    handler.jcenter()
+    handler.mavenCentral()
     handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
 }
 ext.addRepos = this.&addRepos
diff --git a/MADSkillsNavigationSample/build.gradle b/MADSkillsNavigationSample/build.gradle
index ef73041b..5cd3c5e0 100644
--- a/MADSkillsNavigationSample/build.gradle
+++ b/MADSkillsNavigationSample/build.gradle
@@ -20,11 +20,11 @@ buildscript {
     ext.kotlin_version = '1.4.10'
     repositories {
         google()
-        jcenter()
+        mavenCentral()
         
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.1'
+        classpath 'com.android.tools.build:gradle:4.2.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         def nav_version = "2.3.0"
         classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"
@@ -37,7 +37,7 @@ buildscript {
 allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
         
     }
 }
@@ -58,4 +58,4 @@ ext {
     ktxVersion = '1.3.2'
     constraintLayoutVersion = '2.0.2'
     ktlintVersion = '0.37.2'
-}
\ No newline at end of file
+}
diff --git a/MADSkillsNavigationSample/versions.gradle b/MADSkillsNavigationSample/versions.gradle
index 8ba66b4d..cb2a476e 100644
--- a/MADSkillsNavigationSample/versions.gradle
+++ b/MADSkillsNavigationSample/versions.gradle
@@ -22,7 +22,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.activity = '1.1.0'
-versions.android_gradle_plugin = '4.0.0'
+versions.android_gradle_plugin = '4.2.2'
 versions.annotations = "1.0.0"
 versions.apache_commons = "2.5"
 versions.appcompat = "1.2.0-alpha02"
@@ -31,7 +31,7 @@ versions.atsl_core = "1.3.0"
 versions.atsl_junit = "1.1.2"
 versions.atsl_rules = "1.3.0"
 versions.atsl_runner = "1.3.0"
-versions.benchmark = "1.1.0-alpha01"
+versions.benchmark = "1.1.0-alpha06"
 versions.cardview = "1.0.0"
 versions.constraint_layout = "2.0.0-alpha2"
 versions.core_ktx = "1.1.0"
@@ -39,7 +39,7 @@ versions.coroutines = "1.4.1"
 versions.dagger = "2.16"
 versions.dexmaker = "2.2.0"
 versions.espresso = "3.2.0"
-versions.fragment = "1.2.0"
+versions.fragment = "1.4.0-alpha07"
 versions.glide = "4.8.0"
 versions.hamcrest = "1.3"
 versions.junit = "4.12"
@@ -50,7 +50,7 @@ versions.mockito = "2.25.0"
 versions.mockito_all = "1.10.19"
 versions.mockito_android = "2.25.0"
 versions.mockwebserver = "3.8.1"
-versions.navigation = "2.3.0-alpha01"
+versions.navigation = "2.4.0-alpha07"
 versions.okhttp_logging_interceptor = "3.9.0"
 versions.paging = "3.0.0-beta01"
 versions.recyclerview = "1.2.0-beta01"
@@ -67,7 +67,7 @@ ext.versions = versions
 
 def build_versions = [:]
 build_versions.min_sdk = 14
-build_versions.compile_sdk = 29
+build_versions.compile_sdk = 31
 build_versions.target_sdk = 29
 build_versions.build_tools = "29.0.3"
 ext.build_versions = build_versions
@@ -221,7 +221,7 @@ ext.deps = deps
 
 def addRepos(RepositoryHandler handler) {
     handler.google()
-    handler.jcenter()
+    handler.mavenCentral()
     handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
 }
 ext.addRepos = this.&addRepos
diff --git a/NavigationAdvancedSample/versions.gradle b/NavigationAdvancedSample/versions.gradle
index af619883..cb2a476e 100644
--- a/NavigationAdvancedSample/versions.gradle
+++ b/NavigationAdvancedSample/versions.gradle
@@ -22,7 +22,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.activity = '1.1.0'
-versions.android_gradle_plugin = '4.0.0'
+versions.android_gradle_plugin = '4.2.2'
 versions.annotations = "1.0.0"
 versions.apache_commons = "2.5"
 versions.appcompat = "1.2.0-alpha02"
@@ -31,7 +31,7 @@ versions.atsl_core = "1.3.0"
 versions.atsl_junit = "1.1.2"
 versions.atsl_rules = "1.3.0"
 versions.atsl_runner = "1.3.0"
-versions.benchmark = "1.1.0-alpha01"
+versions.benchmark = "1.1.0-alpha06"
 versions.cardview = "1.0.0"
 versions.constraint_layout = "2.0.0-alpha2"
 versions.core_ktx = "1.1.0"
@@ -39,7 +39,7 @@ versions.coroutines = "1.4.1"
 versions.dagger = "2.16"
 versions.dexmaker = "2.2.0"
 versions.espresso = "3.2.0"
-versions.fragment = "1.4.0-alpha01"
+versions.fragment = "1.4.0-alpha07"
 versions.glide = "4.8.0"
 versions.hamcrest = "1.3"
 versions.junit = "4.12"
@@ -50,7 +50,7 @@ versions.mockito = "2.25.0"
 versions.mockito_all = "1.10.19"
 versions.mockito_android = "2.25.0"
 versions.mockwebserver = "3.8.1"
-versions.navigation = "2.4.0-alpha01"
+versions.navigation = "2.4.0-alpha07"
 versions.okhttp_logging_interceptor = "3.9.0"
 versions.paging = "3.0.0-beta01"
 versions.recyclerview = "1.2.0-beta01"
@@ -67,7 +67,7 @@ ext.versions = versions
 
 def build_versions = [:]
 build_versions.min_sdk = 14
-build_versions.compile_sdk = 29
+build_versions.compile_sdk = 31
 build_versions.target_sdk = 29
 build_versions.build_tools = "29.0.3"
 ext.build_versions = build_versions
@@ -221,7 +221,7 @@ ext.deps = deps
 
 def addRepos(RepositoryHandler handler) {
     handler.google()
-    handler.jcenter()
+    handler.mavenCentral()
     handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
 }
 ext.addRepos = this.&addRepos
diff --git a/NavigationBasicSample/versions.gradle b/NavigationBasicSample/versions.gradle
index 8ba66b4d..cb2a476e 100644
--- a/NavigationBasicSample/versions.gradle
+++ b/NavigationBasicSample/versions.gradle
@@ -22,7 +22,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.activity = '1.1.0'
-versions.android_gradle_plugin = '4.0.0'
+versions.android_gradle_plugin = '4.2.2'
 versions.annotations = "1.0.0"
 versions.apache_commons = "2.5"
 versions.appcompat = "1.2.0-alpha02"
@@ -31,7 +31,7 @@ versions.atsl_core = "1.3.0"
 versions.atsl_junit = "1.1.2"
 versions.atsl_rules = "1.3.0"
 versions.atsl_runner = "1.3.0"
-versions.benchmark = "1.1.0-alpha01"
+versions.benchmark = "1.1.0-alpha06"
 versions.cardview = "1.0.0"
 versions.constraint_layout = "2.0.0-alpha2"
 versions.core_ktx = "1.1.0"
@@ -39,7 +39,7 @@ versions.coroutines = "1.4.1"
 versions.dagger = "2.16"
 versions.dexmaker = "2.2.0"
 versions.espresso = "3.2.0"
-versions.fragment = "1.2.0"
+versions.fragment = "1.4.0-alpha07"
 versions.glide = "4.8.0"
 versions.hamcrest = "1.3"
 versions.junit = "4.12"
@@ -50,7 +50,7 @@ versions.mockito = "2.25.0"
 versions.mockito_all = "1.10.19"
 versions.mockito_android = "2.25.0"
 versions.mockwebserver = "3.8.1"
-versions.navigation = "2.3.0-alpha01"
+versions.navigation = "2.4.0-alpha07"
 versions.okhttp_logging_interceptor = "3.9.0"
 versions.paging = "3.0.0-beta01"
 versions.recyclerview = "1.2.0-beta01"
@@ -67,7 +67,7 @@ ext.versions = versions
 
 def build_versions = [:]
 build_versions.min_sdk = 14
-build_versions.compile_sdk = 29
+build_versions.compile_sdk = 31
 build_versions.target_sdk = 29
 build_versions.build_tools = "29.0.3"
 ext.build_versions = build_versions
@@ -221,7 +221,7 @@ ext.deps = deps
 
 def addRepos(RepositoryHandler handler) {
     handler.google()
-    handler.jcenter()
+    handler.mavenCentral()
     handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
 }
 ext.addRepos = this.&addRepos
diff --git a/PagingSample/versions.gradle b/PagingSample/versions.gradle
index 8ba66b4d..cb2a476e 100644
--- a/PagingSample/versions.gradle
+++ b/PagingSample/versions.gradle
@@ -22,7 +22,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.activity = '1.1.0'
-versions.android_gradle_plugin = '4.0.0'
+versions.android_gradle_plugin = '4.2.2'
 versions.annotations = "1.0.0"
 versions.apache_commons = "2.5"
 versions.appcompat = "1.2.0-alpha02"
@@ -31,7 +31,7 @@ versions.atsl_core = "1.3.0"
 versions.atsl_junit = "1.1.2"
 versions.atsl_rules = "1.3.0"
 versions.atsl_runner = "1.3.0"
-versions.benchmark = "1.1.0-alpha01"
+versions.benchmark = "1.1.0-alpha06"
 versions.cardview = "1.0.0"
 versions.constraint_layout = "2.0.0-alpha2"
 versions.core_ktx = "1.1.0"
@@ -39,7 +39,7 @@ versions.coroutines = "1.4.1"
 versions.dagger = "2.16"
 versions.dexmaker = "2.2.0"
 versions.espresso = "3.2.0"
-versions.fragment = "1.2.0"
+versions.fragment = "1.4.0-alpha07"
 versions.glide = "4.8.0"
 versions.hamcrest = "1.3"
 versions.junit = "4.12"
@@ -50,7 +50,7 @@ versions.mockito = "2.25.0"
 versions.mockito_all = "1.10.19"
 versions.mockito_android = "2.25.0"
 versions.mockwebserver = "3.8.1"
-versions.navigation = "2.3.0-alpha01"
+versions.navigation = "2.4.0-alpha07"
 versions.okhttp_logging_interceptor = "3.9.0"
 versions.paging = "3.0.0-beta01"
 versions.recyclerview = "1.2.0-beta01"
@@ -67,7 +67,7 @@ ext.versions = versions
 
 def build_versions = [:]
 build_versions.min_sdk = 14
-build_versions.compile_sdk = 29
+build_versions.compile_sdk = 31
 build_versions.target_sdk = 29
 build_versions.build_tools = "29.0.3"
 ext.build_versions = build_versions
@@ -221,7 +221,7 @@ ext.deps = deps
 
 def addRepos(RepositoryHandler handler) {
     handler.google()
-    handler.jcenter()
+    handler.mavenCentral()
     handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
 }
 ext.addRepos = this.&addRepos
diff --git a/PagingWithNetworkSample/versions.gradle b/PagingWithNetworkSample/versions.gradle
index 8ba66b4d..cb2a476e 100644
--- a/PagingWithNetworkSample/versions.gradle
+++ b/PagingWithNetworkSample/versions.gradle
@@ -22,7 +22,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.activity = '1.1.0'
-versions.android_gradle_plugin = '4.0.0'
+versions.android_gradle_plugin = '4.2.2'
 versions.annotations = "1.0.0"
 versions.apache_commons = "2.5"
 versions.appcompat = "1.2.0-alpha02"
@@ -31,7 +31,7 @@ versions.atsl_core = "1.3.0"
 versions.atsl_junit = "1.1.2"
 versions.atsl_rules = "1.3.0"
 versions.atsl_runner = "1.3.0"
-versions.benchmark = "1.1.0-alpha01"
+versions.benchmark = "1.1.0-alpha06"
 versions.cardview = "1.0.0"
 versions.constraint_layout = "2.0.0-alpha2"
 versions.core_ktx = "1.1.0"
@@ -39,7 +39,7 @@ versions.coroutines = "1.4.1"
 versions.dagger = "2.16"
 versions.dexmaker = "2.2.0"
 versions.espresso = "3.2.0"
-versions.fragment = "1.2.0"
+versions.fragment = "1.4.0-alpha07"
 versions.glide = "4.8.0"
 versions.hamcrest = "1.3"
 versions.junit = "4.12"
@@ -50,7 +50,7 @@ versions.mockito = "2.25.0"
 versions.mockito_all = "1.10.19"
 versions.mockito_android = "2.25.0"
 versions.mockwebserver = "3.8.1"
-versions.navigation = "2.3.0-alpha01"
+versions.navigation = "2.4.0-alpha07"
 versions.okhttp_logging_interceptor = "3.9.0"
 versions.paging = "3.0.0-beta01"
 versions.recyclerview = "1.2.0-beta01"
@@ -67,7 +67,7 @@ ext.versions = versions
 
 def build_versions = [:]
 build_versions.min_sdk = 14
-build_versions.compile_sdk = 29
+build_versions.compile_sdk = 31
 build_versions.target_sdk = 29
 build_versions.build_tools = "29.0.3"
 ext.build_versions = build_versions
@@ -221,7 +221,7 @@ ext.deps = deps
 
 def addRepos(RepositoryHandler handler) {
     handler.google()
-    handler.jcenter()
+    handler.mavenCentral()
     handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
 }
 ext.addRepos = this.&addRepos
diff --git a/PersistenceContentProviderSample/versions.gradle b/PersistenceContentProviderSample/versions.gradle
index 8ba66b4d..cb2a476e 100644
--- a/PersistenceContentProviderSample/versions.gradle
+++ b/PersistenceContentProviderSample/versions.gradle
@@ -22,7 +22,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.activity = '1.1.0'
-versions.android_gradle_plugin = '4.0.0'
+versions.android_gradle_plugin = '4.2.2'
 versions.annotations = "1.0.0"
 versions.apache_commons = "2.5"
 versions.appcompat = "1.2.0-alpha02"
@@ -31,7 +31,7 @@ versions.atsl_core = "1.3.0"
 versions.atsl_junit = "1.1.2"
 versions.atsl_rules = "1.3.0"
 versions.atsl_runner = "1.3.0"
-versions.benchmark = "1.1.0-alpha01"
+versions.benchmark = "1.1.0-alpha06"
 versions.cardview = "1.0.0"
 versions.constraint_layout = "2.0.0-alpha2"
 versions.core_ktx = "1.1.0"
@@ -39,7 +39,7 @@ versions.coroutines = "1.4.1"
 versions.dagger = "2.16"
 versions.dexmaker = "2.2.0"
 versions.espresso = "3.2.0"
-versions.fragment = "1.2.0"
+versions.fragment = "1.4.0-alpha07"
 versions.glide = "4.8.0"
 versions.hamcrest = "1.3"
 versions.junit = "4.12"
@@ -50,7 +50,7 @@ versions.mockito = "2.25.0"
 versions.mockito_all = "1.10.19"
 versions.mockito_android = "2.25.0"
 versions.mockwebserver = "3.8.1"
-versions.navigation = "2.3.0-alpha01"
+versions.navigation = "2.4.0-alpha07"
 versions.okhttp_logging_interceptor = "3.9.0"
 versions.paging = "3.0.0-beta01"
 versions.recyclerview = "1.2.0-beta01"
@@ -67,7 +67,7 @@ ext.versions = versions
 
 def build_versions = [:]
 build_versions.min_sdk = 14
-build_versions.compile_sdk = 29
+build_versions.compile_sdk = 31
 build_versions.target_sdk = 29
 build_versions.build_tools = "29.0.3"
 ext.build_versions = build_versions
@@ -221,7 +221,7 @@ ext.deps = deps
 
 def addRepos(RepositoryHandler handler) {
     handler.google()
-    handler.jcenter()
+    handler.mavenCentral()
     handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
 }
 ext.addRepos = this.&addRepos
diff --git a/PersistenceMigrationsSample/versions.gradle b/PersistenceMigrationsSample/versions.gradle
index 8ba66b4d..cb2a476e 100644
--- a/PersistenceMigrationsSample/versions.gradle
+++ b/PersistenceMigrationsSample/versions.gradle
@@ -22,7 +22,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.activity = '1.1.0'
-versions.android_gradle_plugin = '4.0.0'
+versions.android_gradle_plugin = '4.2.2'
 versions.annotations = "1.0.0"
 versions.apache_commons = "2.5"
 versions.appcompat = "1.2.0-alpha02"
@@ -31,7 +31,7 @@ versions.atsl_core = "1.3.0"
 versions.atsl_junit = "1.1.2"
 versions.atsl_rules = "1.3.0"
 versions.atsl_runner = "1.3.0"
-versions.benchmark = "1.1.0-alpha01"
+versions.benchmark = "1.1.0-alpha06"
 versions.cardview = "1.0.0"
 versions.constraint_layout = "2.0.0-alpha2"
 versions.core_ktx = "1.1.0"
@@ -39,7 +39,7 @@ versions.coroutines = "1.4.1"
 versions.dagger = "2.16"
 versions.dexmaker = "2.2.0"
 versions.espresso = "3.2.0"
-versions.fragment = "1.2.0"
+versions.fragment = "1.4.0-alpha07"
 versions.glide = "4.8.0"
 versions.hamcrest = "1.3"
 versions.junit = "4.12"
@@ -50,7 +50,7 @@ versions.mockito = "2.25.0"
 versions.mockito_all = "1.10.19"
 versions.mockito_android = "2.25.0"
 versions.mockwebserver = "3.8.1"
-versions.navigation = "2.3.0-alpha01"
+versions.navigation = "2.4.0-alpha07"
 versions.okhttp_logging_interceptor = "3.9.0"
 versions.paging = "3.0.0-beta01"
 versions.recyclerview = "1.2.0-beta01"
@@ -67,7 +67,7 @@ ext.versions = versions
 
 def build_versions = [:]
 build_versions.min_sdk = 14
-build_versions.compile_sdk = 29
+build_versions.compile_sdk = 31
 build_versions.target_sdk = 29
 build_versions.build_tools = "29.0.3"
 ext.build_versions = build_versions
@@ -221,7 +221,7 @@ ext.deps = deps
 
 def addRepos(RepositoryHandler handler) {
     handler.google()
-    handler.jcenter()
+    handler.mavenCentral()
     handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
 }
 ext.addRepos = this.&addRepos
diff --git a/ViewBindingSample/versions.gradle b/ViewBindingSample/versions.gradle
index 8ba66b4d..cb2a476e 100644
--- a/ViewBindingSample/versions.gradle
+++ b/ViewBindingSample/versions.gradle
@@ -22,7 +22,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.activity = '1.1.0'
-versions.android_gradle_plugin = '4.0.0'
+versions.android_gradle_plugin = '4.2.2'
 versions.annotations = "1.0.0"
 versions.apache_commons = "2.5"
 versions.appcompat = "1.2.0-alpha02"
@@ -31,7 +31,7 @@ versions.atsl_core = "1.3.0"
 versions.atsl_junit = "1.1.2"
 versions.atsl_rules = "1.3.0"
 versions.atsl_runner = "1.3.0"
-versions.benchmark = "1.1.0-alpha01"
+versions.benchmark = "1.1.0-alpha06"
 versions.cardview = "1.0.0"
 versions.constraint_layout = "2.0.0-alpha2"
 versions.core_ktx = "1.1.0"
@@ -39,7 +39,7 @@ versions.coroutines = "1.4.1"
 versions.dagger = "2.16"
 versions.dexmaker = "2.2.0"
 versions.espresso = "3.2.0"
-versions.fragment = "1.2.0"
+versions.fragment = "1.4.0-alpha07"
 versions.glide = "4.8.0"
 versions.hamcrest = "1.3"
 versions.junit = "4.12"
@@ -50,7 +50,7 @@ versions.mockito = "2.25.0"
 versions.mockito_all = "1.10.19"
 versions.mockito_android = "2.25.0"
 versions.mockwebserver = "3.8.1"
-versions.navigation = "2.3.0-alpha01"
+versions.navigation = "2.4.0-alpha07"
 versions.okhttp_logging_interceptor = "3.9.0"
 versions.paging = "3.0.0-beta01"
 versions.recyclerview = "1.2.0-beta01"
@@ -67,7 +67,7 @@ ext.versions = versions
 
 def build_versions = [:]
 build_versions.min_sdk = 14
-build_versions.compile_sdk = 29
+build_versions.compile_sdk = 31
 build_versions.target_sdk = 29
 build_versions.build_tools = "29.0.3"
 ext.build_versions = build_versions
@@ -221,7 +221,7 @@ ext.deps = deps
 
 def addRepos(RepositoryHandler handler) {
     handler.google()
-    handler.jcenter()
+    handler.mavenCentral()
     handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
 }
 ext.addRepos = this.&addRepos
diff --git a/WorkManagerMultiprocessSample/build.gradle b/WorkManagerMultiprocessSample/build.gradle
index 937cd652..084b34be 100644
--- a/WorkManagerMultiprocessSample/build.gradle
+++ b/WorkManagerMultiprocessSample/build.gradle
@@ -19,10 +19,10 @@ buildscript {
     ext.kotlin_version = "1.3.72"
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
     dependencies {
-        classpath "com.android.tools.build:gradle:4.1.3"
+        classpath "com.android.tools.build:gradle:4.2.2"
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
@@ -33,10 +33,10 @@ buildscript {
 allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 }
 
 task clean(type: Delete) {
     delete rootProject.buildDir
-}
\ No newline at end of file
+}
diff --git a/WorkManagerMultiprocessSample/gradle/wrapper/gradle-wrapper.properties b/WorkManagerMultiprocessSample/gradle/wrapper/gradle-wrapper.properties
index 1ee6459d..db78223b 100644
--- a/WorkManagerMultiprocessSample/gradle/wrapper/gradle-wrapper.properties
+++ b/WorkManagerMultiprocessSample/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,22 @@
-#Wed May 12 09:57:18 PDT 2021
+#
+# Copyright (C) 2018 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+#Thu Feb 22 10:53:38 GMT 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-all.zip
diff --git a/WorkManagerSample/versions.gradle b/WorkManagerSample/versions.gradle
index 8ba66b4d..cb2a476e 100644
--- a/WorkManagerSample/versions.gradle
+++ b/WorkManagerSample/versions.gradle
@@ -22,7 +22,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.activity = '1.1.0'
-versions.android_gradle_plugin = '4.0.0'
+versions.android_gradle_plugin = '4.2.2'
 versions.annotations = "1.0.0"
 versions.apache_commons = "2.5"
 versions.appcompat = "1.2.0-alpha02"
@@ -31,7 +31,7 @@ versions.atsl_core = "1.3.0"
 versions.atsl_junit = "1.1.2"
 versions.atsl_rules = "1.3.0"
 versions.atsl_runner = "1.3.0"
-versions.benchmark = "1.1.0-alpha01"
+versions.benchmark = "1.1.0-alpha06"
 versions.cardview = "1.0.0"
 versions.constraint_layout = "2.0.0-alpha2"
 versions.core_ktx = "1.1.0"
@@ -39,7 +39,7 @@ versions.coroutines = "1.4.1"
 versions.dagger = "2.16"
 versions.dexmaker = "2.2.0"
 versions.espresso = "3.2.0"
-versions.fragment = "1.2.0"
+versions.fragment = "1.4.0-alpha07"
 versions.glide = "4.8.0"
 versions.hamcrest = "1.3"
 versions.junit = "4.12"
@@ -50,7 +50,7 @@ versions.mockito = "2.25.0"
 versions.mockito_all = "1.10.19"
 versions.mockito_android = "2.25.0"
 versions.mockwebserver = "3.8.1"
-versions.navigation = "2.3.0-alpha01"
+versions.navigation = "2.4.0-alpha07"
 versions.okhttp_logging_interceptor = "3.9.0"
 versions.paging = "3.0.0-beta01"
 versions.recyclerview = "1.2.0-beta01"
@@ -67,7 +67,7 @@ ext.versions = versions
 
 def build_versions = [:]
 build_versions.min_sdk = 14
-build_versions.compile_sdk = 29
+build_versions.compile_sdk = 31
 build_versions.target_sdk = 29
 build_versions.build_tools = "29.0.3"
 ext.build_versions = build_versions
@@ -221,7 +221,7 @@ ext.deps = deps
 
 def addRepos(RepositoryHandler handler) {
     handler.google()
-    handler.jcenter()
+    handler.mavenCentral()
     handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
 }
 ext.addRepos = this.&addRepos
diff --git a/versions.gradle b/versions.gradle
index 8ba66b4d..cb2a476e 100644
--- a/versions.gradle
+++ b/versions.gradle
@@ -22,7 +22,7 @@
 ext.deps = [:]
 def versions = [:]
 versions.activity = '1.1.0'
-versions.android_gradle_plugin = '4.0.0'
+versions.android_gradle_plugin = '4.2.2'
 versions.annotations = "1.0.0"
 versions.apache_commons = "2.5"
 versions.appcompat = "1.2.0-alpha02"
@@ -31,7 +31,7 @@ versions.atsl_core = "1.3.0"
 versions.atsl_junit = "1.1.2"
 versions.atsl_rules = "1.3.0"
 versions.atsl_runner = "1.3.0"
-versions.benchmark = "1.1.0-alpha01"
+versions.benchmark = "1.1.0-alpha06"
 versions.cardview = "1.0.0"
 versions.constraint_layout = "2.0.0-alpha2"
 versions.core_ktx = "1.1.0"
@@ -39,7 +39,7 @@ versions.coroutines = "1.4.1"
 versions.dagger = "2.16"
 versions.dexmaker = "2.2.0"
 versions.espresso = "3.2.0"
-versions.fragment = "1.2.0"
+versions.fragment = "1.4.0-alpha07"
 versions.glide = "4.8.0"
 versions.hamcrest = "1.3"
 versions.junit = "4.12"
@@ -50,7 +50,7 @@ versions.mockito = "2.25.0"
 versions.mockito_all = "1.10.19"
 versions.mockito_android = "2.25.0"
 versions.mockwebserver = "3.8.1"
-versions.navigation = "2.3.0-alpha01"
+versions.navigation = "2.4.0-alpha07"
 versions.okhttp_logging_interceptor = "3.9.0"
 versions.paging = "3.0.0-beta01"
 versions.recyclerview = "1.2.0-beta01"
@@ -67,7 +67,7 @@ ext.versions = versions
 
 def build_versions = [:]
 build_versions.min_sdk = 14
-build_versions.compile_sdk = 29
+build_versions.compile_sdk = 31
 build_versions.target_sdk = 29
 build_versions.build_tools = "29.0.3"
 ext.build_versions = build_versions
@@ -221,7 +221,7 @@ ext.deps = deps
 
 def addRepos(RepositoryHandler handler) {
     handler.google()
-    handler.jcenter()
+    handler.mavenCentral()
     handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
 }
 ext.addRepos = this.&addRepos