diff --git a/CHANGELOG.md b/CHANGELOG.md
index cb2354b..b07137d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [1.0.0](https://www.github.com/googleapis/java-iam-admin/compare/v0.1.2...v1.0.0) (2021-10-25)
+
+
+### Features
+
+* promote to GA ([#26](https://www.github.com/googleapis/java-iam-admin/issues/26)) ([1a3cf11](https://www.github.com/googleapis/java-iam-admin/commit/1a3cf11111a3398f94399f72d5969f159b6bf9b4))
+
 ### [0.1.2](https://www.github.com/googleapis/java-iam-admin/compare/v0.1.1...v0.1.2) (2021-10-25)
 
 
diff --git a/README.md b/README.md
index 70bcac2..eaf7cf7 100644
--- a/README.md
+++ b/README.md
@@ -19,20 +19,20 @@ If you are using Maven, add this to your pom.xml file:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-iam-admin</artifactId>
-  <version>0.1.0</version>
+  <version>0.1.2</version>
 </dependency>
 ```
 
 If you are using Gradle without BOM, add this to your dependencies
 
 ```Groovy
-implementation 'com.google.cloud:google-iam-admin:0.1.0'
+implementation 'com.google.cloud:google-iam-admin:0.1.2'
 ```
 
 If you are using SBT, add this to your dependencies
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-iam-admin" % "0.1.0"
+libraryDependencies += "com.google.cloud" % "google-iam-admin" % "0.1.2"
 ```
 
 ## Authentication
diff --git a/google-iam-admin-bom/pom.xml b/google-iam-admin-bom/pom.xml
index 3b7b96f..20f30ad 100644
--- a/google-iam-admin-bom/pom.xml
+++ b/google-iam-admin-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-iam-admin-bom</artifactId>
-  <version>0.1.3-SNAPSHOT</version><!-- {x-version-update:google-iam-admin:current} -->
+  <version>1.0.0</version><!-- {x-version-update:google-iam-admin:current} -->
   <packaging>pom</packaging>
   <parent>
     <groupId>com.google.cloud</groupId>
@@ -65,17 +65,17 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-iam-admin</artifactId>
-        <version>0.1.3-SNAPSHOT</version><!-- {x-version-update:google-iam-admin:current} -->
+        <version>1.0.0</version><!-- {x-version-update:google-iam-admin:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-iam-admin-v1</artifactId>
-        <version>0.1.3-SNAPSHOT</version><!-- {x-version-update:grpc-google-iam-admin-v1:current} -->
+        <version>1.0.0</version><!-- {x-version-update:grpc-google-iam-admin-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-iam-admin-v1</artifactId>
-        <version>0.1.3-SNAPSHOT</version><!-- {x-version-update:proto-google-iam-admin-v1:current} -->
+        <version>1.0.0</version><!-- {x-version-update:proto-google-iam-admin-v1:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/google-iam-admin/pom.xml b/google-iam-admin/pom.xml
index b8bfc2c..81ed124 100644
--- a/google-iam-admin/pom.xml
+++ b/google-iam-admin/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-iam-admin</artifactId>
-  <version>0.1.3-SNAPSHOT</version><!-- {x-version-update:google-iam-admin:current} -->
+  <version>1.0.0</version><!-- {x-version-update:google-iam-admin:current} -->
   <packaging>jar</packaging>
   <name>Google IAM Admin API</name>
   <url>https://github.com/googleapis/java-iam-admin</url>
@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-iam-admin-parent</artifactId>
-    <version>0.1.3-SNAPSHOT</version><!-- {x-version-update:google-iam-admin:current} -->
+    <version>1.0.0</version><!-- {x-version-update:google-iam-admin:current} -->
   </parent>
   <properties>
     <site.installationModule>google-iam-admin</site.installationModule>
diff --git a/grpc-google-iam-admin-v1/pom.xml b/grpc-google-iam-admin-v1/pom.xml
index 4f22df4..825f867 100644
--- a/grpc-google-iam-admin-v1/pom.xml
+++ b/grpc-google-iam-admin-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-iam-admin-v1</artifactId>
-  <version>0.1.3-SNAPSHOT</version><!-- {x-version-update:grpc-google-iam-admin-v1:current} -->
+  <version>1.0.0</version><!-- {x-version-update:grpc-google-iam-admin-v1:current} -->
   <name>grpc-google-iam-admin-v1</name>
   <description>GRPC library for google-iam-admin</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-iam-admin-parent</artifactId>
-    <version>0.1.3-SNAPSHOT</version><!-- {x-version-update:google-iam-admin:current} -->
+    <version>1.0.0</version><!-- {x-version-update:google-iam-admin:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/pom.xml b/pom.xml
index 850c437..18a0940 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-iam-admin-parent</artifactId>
   <packaging>pom</packaging>
-  <version>0.1.3-SNAPSHOT</version><!-- {x-version-update:google-iam-admin:current} -->
+  <version>1.0.0</version><!-- {x-version-update:google-iam-admin:current} -->
   <name>Google IAM Admin API Parent</name>
   <url>https://github.com/googleapis/java-iam-admin</url>
   <description>
@@ -69,17 +69,17 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-iam-admin</artifactId>
-        <version>0.1.3-SNAPSHOT</version><!-- {x-version-update:google-iam-admin:current} -->
+        <version>1.0.0</version><!-- {x-version-update:google-iam-admin:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-iam-admin-v1</artifactId>
-        <version>0.1.3-SNAPSHOT</version><!-- {x-version-update:grpc-google-iam-admin-v1:current} -->
+        <version>1.0.0</version><!-- {x-version-update:grpc-google-iam-admin-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-iam-admin-v1</artifactId>
-        <version>0.1.3-SNAPSHOT</version><!-- {x-version-update:proto-google-iam-admin-v1:current} -->
+        <version>1.0.0</version><!-- {x-version-update:proto-google-iam-admin-v1:current} -->
       </dependency>
 
       <dependency>
diff --git a/proto-google-iam-admin-v1/pom.xml b/proto-google-iam-admin-v1/pom.xml
index a3a7550..6e8e2d4 100644
--- a/proto-google-iam-admin-v1/pom.xml
+++ b/proto-google-iam-admin-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-iam-admin-v1</artifactId>
-  <version>0.1.3-SNAPSHOT</version><!-- {x-version-update:proto-google-iam-admin-v1:current} -->
+  <version>1.0.0</version><!-- {x-version-update:proto-google-iam-admin-v1:current} -->
   <name>proto-google-iam-admin-v1</name>
   <description>Proto library for google-iam-admin</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-iam-admin-parent</artifactId>
-    <version>0.1.3-SNAPSHOT</version><!-- {x-version-update:google-iam-admin:current} -->
+    <version>1.0.0</version><!-- {x-version-update:google-iam-admin:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index c335312..72669d8 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-iam-admin</artifactId>
-      <version>0.1.3-SNAPSHOT</version>
+      <version>1.0.0</version>
     </dependency>
     <!-- {x-version-update-end} -->
 
diff --git a/versions.txt b/versions.txt
index 144e526..40141b3 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,6 +1,6 @@
 # Format:
 # module:released-version:current-version
 
-google-iam-admin:0.1.2:0.1.3-SNAPSHOT
-grpc-google-iam-admin-v1:0.1.2:0.1.3-SNAPSHOT
-proto-google-iam-admin-v1:0.1.2:0.1.3-SNAPSHOT
+google-iam-admin:1.0.0:1.0.0
+grpc-google-iam-admin-v1:1.0.0:1.0.0
+proto-google-iam-admin-v1:1.0.0:1.0.0