diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6fe9d7bb..410a0ab6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,33 @@
 # Changelog
 
+## [0.20.0](https://www.github.com/googleapis/java-game-servers/compare/v0.19.1...v0.20.0) (2020-07-22)
+
+
+### ⚠ BREAKING CHANGES
+
+* remove v1alpha client (#177)
+
+### Features
+
+* **deps:** adopt flatten plugin and google-cloud-shared-dependencies ([#159](https://www.github.com/googleapis/java-game-servers/issues/159)) ([871c822](https://www.github.com/googleapis/java-game-servers/commit/871c8220f663daf99947dcc6fcb885beec3b62cd))
+* add v1beta client ([#176](https://www.github.com/googleapis/java-game-servers/issues/176)) ([d818dd4](https://www.github.com/googleapis/java-game-servers/commit/d818dd45282989d7f437466e2b6378b27a820a7c))
+* remove v1alpha client ([#177](https://www.github.com/googleapis/java-game-servers/issues/177)) ([948776f](https://www.github.com/googleapis/java-game-servers/commit/948776f3975770a5e7f2d2bec1435e8727bd2638))
+
+
+### Dependencies
+
+* update dependency com.google.api:api-common to v1.9.1 ([#138](https://www.github.com/googleapis/java-game-servers/issues/138)) ([6e0743e](https://www.github.com/googleapis/java-game-servers/commit/6e0743e1b0d0e064d6e80e48ae7b4bb54ef3a5af))
+* update dependency com.google.api:api-common to v1.9.2 ([#143](https://www.github.com/googleapis/java-game-servers/issues/143)) ([0a794e9](https://www.github.com/googleapis/java-game-servers/commit/0a794e9f4a0c880d00bf6be7f92a709115631294))
+* update dependency com.google.api.grpc:proto-google-common-protos to v1.18.0 ([#129](https://www.github.com/googleapis/java-game-servers/issues/129)) ([9bd660b](https://www.github.com/googleapis/java-game-servers/commit/9bd660be9f5dcad15850c26d1401f47fc7c37c98))
+* update dependency com.google.cloud:google-cloud-shared-dependencies to v0.8.2 ([#171](https://www.github.com/googleapis/java-game-servers/issues/171)) ([043e1c0](https://www.github.com/googleapis/java-game-servers/commit/043e1c05b791d9057e3095cca5a073d99764d5b5))
+* update dependency com.google.cloud:google-cloud-shared-dependencies to v0.8.3 ([#173](https://www.github.com/googleapis/java-game-servers/issues/173)) ([eeb1a1b](https://www.github.com/googleapis/java-game-servers/commit/eeb1a1b5b559f1e3f52bccb3e894cfcfde8b5648))
+* update dependency com.google.guava:guava-bom to v29 ([#107](https://www.github.com/googleapis/java-game-servers/issues/107)) ([5d8453f](https://www.github.com/googleapis/java-game-servers/commit/5d8453f9cc18b55a6dcec181e1c43b23593bb634))
+* update dependency com.google.protobuf:protobuf-java to v3.12.0 ([#132](https://www.github.com/googleapis/java-game-servers/issues/132)) ([3976e6f](https://www.github.com/googleapis/java-game-servers/commit/3976e6fa0706939307673ebd014abddbb7e1c318))
+* update dependency com.google.protobuf:protobuf-java to v3.12.2 ([#136](https://www.github.com/googleapis/java-game-servers/issues/136)) ([3722284](https://www.github.com/googleapis/java-game-servers/commit/3722284784dbcdadc9f688de7c9db5492e740dd4))
+* update dependency io.grpc:grpc-bom to v1.29.0 ([#121](https://www.github.com/googleapis/java-game-servers/issues/121)) ([1a3260b](https://www.github.com/googleapis/java-game-servers/commit/1a3260bd287d63402fa94ee7418748f821c7c5da))
+* update dependency io.grpc:grpc-bom to v1.30.0 ([#147](https://www.github.com/googleapis/java-game-servers/issues/147)) ([a715575](https://www.github.com/googleapis/java-game-servers/commit/a7155750469f762e54b8ef0fce44db56a76c3fe0))
+* update dependency org.threeten:threetenbp to v1.4.4 ([#125](https://www.github.com/googleapis/java-game-servers/issues/125)) ([ce50084](https://www.github.com/googleapis/java-game-servers/commit/ce50084b59e665c995eeb2db2684f080e326eff3))
+
 ### [0.19.1](https://www.github.com/googleapis/java-gameservices/compare/v0.19.0...v0.19.1) (2020-04-07)
 
 
diff --git a/README.md b/README.md
index 9091cb26..7b780ce8 100644
--- a/README.md
+++ b/README.md
@@ -50,11 +50,11 @@ If you are using Maven without BOM, add this to your dependencies:
 
 If you are using Gradle, add this to your dependencies
 ```Groovy
-compile 'com.google.cloud:google-cloud-game-servers:0.0.0'
+compile 'com.google.cloud:google-cloud-game-servers:0.20.0'
 ```
 If you are using SBT, add this to your dependencies
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-game-servers" % "0.0.0"
+libraryDependencies += "com.google.cloud" % "google-cloud-game-servers" % "0.20.0"
 ```
 [//]: # ({x-version-update-end})
 
diff --git a/google-cloud-game-servers-bom/pom.xml b/google-cloud-game-servers-bom/pom.xml
index d39fc26b..f94270ea 100644
--- a/google-cloud-game-servers-bom/pom.xml
+++ b/google-cloud-game-servers-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-game-servers-bom</artifactId>
-  <version>0.19.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-game-servers:current} -->
+  <version>0.20.0</version><!-- {x-version-update:google-cloud-game-servers:current} -->
   <packaging>pom</packaging>
   <parent>
     <groupId>com.google.cloud</groupId>
@@ -64,17 +64,17 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-game-servers-v1beta</artifactId>
-        <version>0.19.2-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-game-servers-v1beta:current} -->
+        <version>0.20.0</version><!-- {x-version-update:proto-google-cloud-game-servers-v1beta:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-game-servers</artifactId>
-        <version>0.19.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-game-servers:current} -->
+        <version>0.20.0</version><!-- {x-version-update:google-cloud-game-servers:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-game-servers-v1beta</artifactId>
-        <version>0.19.2-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-game-servers-v1beta:current} -->
+        <version>0.20.0</version><!-- {x-version-update:grpc-google-cloud-game-servers-v1beta:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/google-cloud-game-servers/pom.xml b/google-cloud-game-servers/pom.xml
index 80fb9558..bb72a1c2 100644
--- a/google-cloud-game-servers/pom.xml
+++ b/google-cloud-game-servers/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-game-servers</artifactId>
-  <version>0.19.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-game-servers:current} -->
+  <version>0.20.0</version><!-- {x-version-update:google-cloud-game-servers:current} -->
   <packaging>jar</packaging>
   <name>Google Cloud Game Services</name>
   <url>https://github.com/googleapis/java-game-servers</url>
@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-game-servers-parent</artifactId>
-    <version>0.19.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-game-servers:current} -->
+    <version>0.20.0</version><!-- {x-version-update:google-cloud-game-servers:current} -->
   </parent>
   <properties>
     <site.installationModule>google-cloud-game-servers</site.installationModule>
diff --git a/grpc-google-cloud-game-servers-v1beta/pom.xml b/grpc-google-cloud-game-servers-v1beta/pom.xml
index 573c7b40..a5fa028d 100644
--- a/grpc-google-cloud-game-servers-v1beta/pom.xml
+++ b/grpc-google-cloud-game-servers-v1beta/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-game-servers-v1beta</artifactId>
-  <version>0.19.2-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-game-servers-v1beta:current} -->
+  <version>0.20.0</version><!-- {x-version-update:grpc-google-cloud-game-servers-v1beta:current} -->
   <name>grpc-google-cloud-game-servers-v1beta</name>
   <description>GRPC library for grpc-google-cloud-game-servers-v1beta</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-game-servers-parent</artifactId>
-    <version>0.19.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-game-servers:current} -->
+    <version>0.20.0</version><!-- {x-version-update:google-cloud-game-servers:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/pom.xml b/pom.xml
index b0494c58..12dd8544 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-game-servers-parent</artifactId>
   <packaging>pom</packaging>
-  <version>0.19.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-game-servers:current} -->
+  <version>0.20.0</version><!-- {x-version-update:google-cloud-game-servers:current} -->
   <name>Google Cloud Game Services Parent</name>
   <url>https://github.com/googleapis/java-game-servers-v1beta</url>
   <description>
@@ -70,17 +70,17 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-game-servers-v1beta</artifactId>
-        <version>0.19.2-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-game-servers-v1beta:current} -->
+        <version>0.20.0</version><!-- {x-version-update:proto-google-cloud-game-servers-v1beta:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-game-servers-v1beta</artifactId>
-        <version>0.19.2-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-game-servers-v1beta:current} -->
+        <version>0.20.0</version><!-- {x-version-update:grpc-google-cloud-game-servers-v1beta:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-game-servers</artifactId>
-        <version>0.19.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-game-servers:current} -->
+        <version>0.20.0</version><!-- {x-version-update:google-cloud-game-servers:current} -->
       </dependency>
 
       <dependency>
diff --git a/proto-google-cloud-game-servers-v1beta/pom.xml b/proto-google-cloud-game-servers-v1beta/pom.xml
index 437f76c2..653cb62a 100644
--- a/proto-google-cloud-game-servers-v1beta/pom.xml
+++ b/proto-google-cloud-game-servers-v1beta/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-game-servers-v1beta</artifactId>
-  <version>0.19.2-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-game-servers-v1beta:current} -->
+  <version>0.20.0</version><!-- {x-version-update:proto-google-cloud-game-servers-v1beta:current} -->
   <name>proto-google-cloud-game-servers-v1beta</name>
   <description>PROTO library for proto-google-cloud-game-servers-v1beta</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-game-servers-parent</artifactId>
-    <version>0.19.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-game-servers:current} -->
+    <version>0.20.0</version><!-- {x-version-update:google-cloud-game-servers:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index b7da0584..ab97ff22 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-game-servers</artifactId>
-      <version>0.19.2-SNAPSHOT</version>
+      <version>0.20.0</version>
     </dependency>
     <!-- {x-version-update-end} -->
 
diff --git a/versions.txt b/versions.txt
index 5c889b75..406a78dc 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,6 +1,6 @@
 # Format:
 # module:released-version:current-version
 
-proto-google-cloud-game-servers-v1beta:0.19.1:0.19.2-SNAPSHOT
-grpc-google-cloud-game-servers-v1beta:0.19.1:0.19.2-SNAPSHOT
-google-cloud-game-servers:0.19.1:0.19.2-SNAPSHOT
\ No newline at end of file
+proto-google-cloud-game-servers-v1beta:0.20.0:0.20.0
+grpc-google-cloud-game-servers-v1beta:0.20.0:0.20.0
+google-cloud-game-servers:0.20.0:0.20.0
\ No newline at end of file