diff --git a/CHANGELOG.md b/CHANGELOG.md
index 03f6c7818e..36b6382346 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,20 @@
 # Changelog
 
+## [1.21.0](https://www.github.com/googleapis/java-bigtable/compare/v1.20.1...v1.21.0) (2021-03-02)
+
+
+### Features
+
+* **generator:** update protoc to v3.15.3 ([#654](https://www.github.com/googleapis/java-bigtable/issues/654)) ([4b0c59a](https://www.github.com/googleapis/java-bigtable/commit/4b0c59a17d668e724fb79369ad7a6f7fbbb31d89))
+* migrate to java microgenerator ([#629](https://www.github.com/googleapis/java-bigtable/issues/629)) ([60d17dc](https://www.github.com/googleapis/java-bigtable/commit/60d17dc1d0a0a568a8bdd3bcc1e7491c17142af3))
+* publish new fields for CMEK support ([#646](https://www.github.com/googleapis/java-bigtable/issues/646)) ([e039386](https://www.github.com/googleapis/java-bigtable/commit/e039386898b82f7b03f5a4064c5dcca0fdd3f330))
+
+
+### Dependencies
+
+* update dependency com.google.cloud:google-cloud-gcloud-maven-plugin to v0.1.2 ([#652](https://www.github.com/googleapis/java-bigtable/issues/652)) ([71a8fd7](https://www.github.com/googleapis/java-bigtable/commit/71a8fd7fe55bd40ad32963ffdfc06999be2ff7fc))
+* update dependency com.google.cloud:google-cloud-shared-dependencies to v0.20.0 ([#653](https://www.github.com/googleapis/java-bigtable/issues/653)) ([c5049c1](https://www.github.com/googleapis/java-bigtable/commit/c5049c1f988e0f4465d9d805fd092087bfa69fdc))
+
 ### [1.20.1](https://www.github.com/googleapis/java-bigtable/compare/v1.20.0...v1.20.1) (2021-02-22)
 
 
diff --git a/google-cloud-bigtable-bom/pom.xml b/google-cloud-bigtable-bom/pom.xml
index e024c17cc0..f5d4691405 100644
--- a/google-cloud-bigtable-bom/pom.xml
+++ b/google-cloud-bigtable-bom/pom.xml
@@ -3,7 +3,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigtable-bom</artifactId>
-    <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+    <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
     <packaging>pom</packaging>
     <parent>
         <groupId>com.google.cloud</groupId>
@@ -72,32 +72,32 @@
             <dependency>
                 <groupId>com.google.cloud</groupId>
                 <artifactId>google-cloud-bigtable</artifactId>
-                <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+                <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
             </dependency>
             <dependency>
                 <groupId>com.google.cloud</groupId>
                 <artifactId>google-cloud-bigtable-emulator</artifactId>
-                <version>0.129.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable-emulator:current} -->
+                <version>0.130.0</version><!-- {x-version-update:google-cloud-bigtable-emulator:current} -->
             </dependency>
             <dependency>
                 <groupId>com.google.api.grpc</groupId>
                 <artifactId>grpc-google-cloud-bigtable-admin-v2</artifactId>
-                <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-bigtable-admin-v2:current} -->
+                <version>1.21.0</version><!-- {x-version-update:grpc-google-cloud-bigtable-admin-v2:current} -->
             </dependency>
             <dependency>
                 <groupId>com.google.api.grpc</groupId>
                 <artifactId>grpc-google-cloud-bigtable-v2</artifactId>
-                <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-bigtable-v2:current} -->
+                <version>1.21.0</version><!-- {x-version-update:grpc-google-cloud-bigtable-v2:current} -->
             </dependency>
             <dependency>
                 <groupId>com.google.api.grpc</groupId>
                 <artifactId>proto-google-cloud-bigtable-admin-v2</artifactId>
-                <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-bigtable-admin-v2:current} -->
+                <version>1.21.0</version><!-- {x-version-update:proto-google-cloud-bigtable-admin-v2:current} -->
             </dependency>
             <dependency>
                 <groupId>com.google.api.grpc</groupId>
                 <artifactId>proto-google-cloud-bigtable-v2</artifactId>
-                <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-bigtable-v2:current} -->
+                <version>1.21.0</version><!-- {x-version-update:proto-google-cloud-bigtable-v2:current} -->
             </dependency>
         </dependencies>
     </dependencyManagement>
diff --git a/google-cloud-bigtable-deps-bom/pom.xml b/google-cloud-bigtable-deps-bom/pom.xml
index ef7ac258a2..2fa96615c8 100644
--- a/google-cloud-bigtable-deps-bom/pom.xml
+++ b/google-cloud-bigtable-deps-bom/pom.xml
@@ -12,7 +12,7 @@
 
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-bigtable-deps-bom</artifactId>
-  <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+  <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
 
   <packaging>pom</packaging>
   <description>
diff --git a/google-cloud-bigtable-emulator/pom.xml b/google-cloud-bigtable-emulator/pom.xml
index 35e9b56f7e..8ad67a073e 100644
--- a/google-cloud-bigtable-emulator/pom.xml
+++ b/google-cloud-bigtable-emulator/pom.xml
@@ -5,7 +5,7 @@
   <modelVersion>4.0.0</modelVersion>
 
   <artifactId>google-cloud-bigtable-emulator</artifactId>
-  <version>0.129.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable-emulator:current} -->
+  <version>0.130.0</version><!-- {x-version-update:google-cloud-bigtable-emulator:current} -->
   <name>Google Cloud Java - Bigtable Emulator</name>
   <url>https://github.com/googleapis/java-bigtable</url>
   <description>
@@ -14,7 +14,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigtable-parent</artifactId>
-    <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+    <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
   </parent>
   <scm>
     <connection>scm:git:git@github.com:googleapis/java-bigtable.git</connection>
@@ -80,14 +80,14 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigtable-deps-bom</artifactId>
-        <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+        <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
         <type>pom</type>
         <scope>import</scope>
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigtable-bom</artifactId>
-        <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+        <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
         <type>pom</type>
         <scope>import</scope>
       </dependency>
diff --git a/google-cloud-bigtable/pom.xml b/google-cloud-bigtable/pom.xml
index d8977b2785..9de0310d1a 100644
--- a/google-cloud-bigtable/pom.xml
+++ b/google-cloud-bigtable/pom.xml
@@ -2,7 +2,7 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>google-cloud-bigtable</artifactId>
-  <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+  <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
   <packaging>jar</packaging>
   <name>Google Cloud Bigtable</name>
   <url>https://github.com/googleapis/java-bigtable</url>
@@ -12,11 +12,11 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigtable-parent</artifactId>
-    <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+    <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
   </parent>
   <properties>
     <!-- The version that will be embedded in the published jar via maven-resources-plugin -->
-    <java-bigtable.version>1.20.2-SNAPSHOT</java-bigtable.version><!-- {x-version-update:google-cloud-bigtable:current} -->
+    <java-bigtable.version>1.21.0</java-bigtable.version><!-- {x-version-update:google-cloud-bigtable:current} -->
 
     <site.installationModule>google-cloud-bigtable</site.installationModule>
 
@@ -39,14 +39,14 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigtable-deps-bom</artifactId>
-        <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+        <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
         <type>pom</type>
         <scope>import</scope>
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigtable-bom</artifactId>
-        <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+        <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
         <type>pom</type>
         <scope>import</scope>
       </dependency>
diff --git a/grpc-google-cloud-bigtable-admin-v2/pom.xml b/grpc-google-cloud-bigtable-admin-v2/pom.xml
index 048227b24a..681901848a 100644
--- a/grpc-google-cloud-bigtable-admin-v2/pom.xml
+++ b/grpc-google-cloud-bigtable-admin-v2/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-bigtable-admin-v2</artifactId>
-  <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-bigtable-admin-v2:current} -->
+  <version>1.21.0</version><!-- {x-version-update:grpc-google-cloud-bigtable-admin-v2:current} -->
   <name>grpc-google-cloud-bigtable-admin-v2</name>
   <description>GRPC library for grpc-google-cloud-bigtable-admin-v2</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigtable-parent</artifactId>
-    <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+    <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
   </parent>
 
   <dependencyManagement>
@@ -18,14 +18,14 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigtable-deps-bom</artifactId>
-        <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+        <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
         <type>pom</type>
         <scope>import</scope>
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigtable-bom</artifactId>
-        <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+        <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
         <type>pom</type>
         <scope>import</scope>
       </dependency>
diff --git a/grpc-google-cloud-bigtable-v2/pom.xml b/grpc-google-cloud-bigtable-v2/pom.xml
index de2a09b39f..44d9ab5cfb 100644
--- a/grpc-google-cloud-bigtable-v2/pom.xml
+++ b/grpc-google-cloud-bigtable-v2/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-bigtable-v2</artifactId>
-  <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-bigtable-v2:current} -->
+  <version>1.21.0</version><!-- {x-version-update:grpc-google-cloud-bigtable-v2:current} -->
   <name>grpc-google-cloud-bigtable-v2</name>
   <description>GRPC library for grpc-google-cloud-bigtable-v2</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigtable-parent</artifactId>
-    <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+    <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
   </parent>
 
   <dependencyManagement>
@@ -18,14 +18,14 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigtable-deps-bom</artifactId>
-        <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+        <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
         <type>pom</type>
         <scope>import</scope>
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigtable-bom</artifactId>
-        <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+        <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
         <type>pom</type>
         <scope>import</scope>
       </dependency>
diff --git a/pom.xml b/pom.xml
index 11c0dd825c..d0f4608888 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
     <artifactId>google-cloud-bigtable-parent</artifactId>
     <packaging>pom</packaging>
-    <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+    <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
     <name>Google Cloud Bigtable Parent</name>
     <url>https://github.com/googleapis/java-bigtable</url>
     <description>
diff --git a/proto-google-cloud-bigtable-admin-v2/pom.xml b/proto-google-cloud-bigtable-admin-v2/pom.xml
index 3cbd482fea..221426a4b5 100644
--- a/proto-google-cloud-bigtable-admin-v2/pom.xml
+++ b/proto-google-cloud-bigtable-admin-v2/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-bigtable-admin-v2</artifactId>
-  <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-bigtable-admin-v2:current} -->
+  <version>1.21.0</version><!-- {x-version-update:proto-google-cloud-bigtable-admin-v2:current} -->
   <name>proto-google-cloud-bigtable-admin-v2</name>
   <description>PROTO library for proto-google-cloud-bigtable-admin-v2</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigtable-parent</artifactId>
-    <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+    <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
   </parent>
 
   <dependencyManagement>
@@ -18,14 +18,14 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigtable-deps-bom</artifactId>
-        <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+        <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
         <type>pom</type>
         <scope>import</scope>
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigtable-bom</artifactId>
-        <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+        <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
         <type>pom</type>
         <scope>import</scope>
       </dependency>
diff --git a/proto-google-cloud-bigtable-v2/pom.xml b/proto-google-cloud-bigtable-v2/pom.xml
index af55904f80..b58b3684e3 100644
--- a/proto-google-cloud-bigtable-v2/pom.xml
+++ b/proto-google-cloud-bigtable-v2/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-bigtable-v2</artifactId>
-  <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-bigtable-v2:current} -->
+  <version>1.21.0</version><!-- {x-version-update:proto-google-cloud-bigtable-v2:current} -->
   <name>proto-google-cloud-bigtable-v2</name>
   <description>PROTO library for proto-google-cloud-bigtable-v2</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigtable-parent</artifactId>
-    <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+    <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
   </parent>
 
   <dependencyManagement>
@@ -18,14 +18,14 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigtable-deps-bom</artifactId>
-        <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+        <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
         <type>pom</type>
         <scope>import</scope>
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigtable-bom</artifactId>
-        <version>1.20.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigtable:current} -->
+        <version>1.21.0</version><!-- {x-version-update:google-cloud-bigtable:current} -->
         <type>pom</type>
         <scope>import</scope>
       </dependency>
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index 9337da9253..9e997a8ab7 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-bigtable</artifactId>
-      <version>1.20.2-SNAPSHOT</version>
+      <version>1.21.0</version>
     </dependency>
   <!-- {x-version-update-end} -->
 
diff --git a/versions.txt b/versions.txt
index 5ec57505e8..664d243fff 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,9 +1,9 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-bigtable:1.20.1:1.20.2-SNAPSHOT
-grpc-google-cloud-bigtable-admin-v2:1.20.1:1.20.2-SNAPSHOT
-grpc-google-cloud-bigtable-v2:1.20.1:1.20.2-SNAPSHOT
-proto-google-cloud-bigtable-admin-v2:1.20.1:1.20.2-SNAPSHOT
-proto-google-cloud-bigtable-v2:1.20.1:1.20.2-SNAPSHOT
-google-cloud-bigtable-emulator:0.129.1:0.129.2-SNAPSHOT
+google-cloud-bigtable:1.21.0:1.21.0
+grpc-google-cloud-bigtable-admin-v2:1.21.0:1.21.0
+grpc-google-cloud-bigtable-v2:1.21.0:1.21.0
+proto-google-cloud-bigtable-admin-v2:1.21.0:1.21.0
+proto-google-cloud-bigtable-v2:1.21.0:1.21.0
+google-cloud-bigtable-emulator:0.130.0:0.130.0