diff --git a/CHANGELOG.md b/CHANGELOG.md
index 48cc1de3e..b3402d817 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,23 @@
 # Changelog
 
+## [1.38.0](https://www.github.com/googleapis/google-http-java-client/compare/v1.37.0...v1.38.0) (2020-11-02)
+
+
+### Features
+
+* add isMtls property to ApacheHttpTransport ([#1168](https://www.github.com/googleapis/google-http-java-client/issues/1168)) ([c416e20](https://www.github.com/googleapis/google-http-java-client/commit/c416e201c92a5c5fc1b1c59c5dd63e8ec1463f5f))
+* add mtls support for NetHttpTransport ([#1147](https://www.github.com/googleapis/google-http-java-client/issues/1147)) ([51762f2](https://www.github.com/googleapis/google-http-java-client/commit/51762f221ec8ab38da03149c8012e63aec0433dc))
+
+
+### Dependencies
+
+* guava 30.0-android ([#1151](https://www.github.com/googleapis/google-http-java-client/issues/1151)) ([969dbbf](https://www.github.com/googleapis/google-http-java-client/commit/969dbbf127708aff16309f82538aca6f0a651638))
+
+
+### Documentation
+
+* libraries-bom 13.4.0 ([#1170](https://www.github.com/googleapis/google-http-java-client/issues/1170)) ([6818a02](https://www.github.com/googleapis/google-http-java-client/commit/6818a02a15e1bef8e9f5ea56a4ecc2b8d0646f9b))
+
 ## [1.37.0](https://www.github.com/googleapis/google-http-java-client/compare/v1.36.0...v1.37.0) (2020-10-13)
 
 
diff --git a/google-http-client-android-test/pom.xml b/google-http-client-android-test/pom.xml
index 54197f3d6..35eb4510c 100644
--- a/google-http-client-android-test/pom.xml
+++ b/google-http-client-android-test/pom.xml
@@ -4,7 +4,7 @@
   <groupId>google-http-client</groupId>
   <artifactId>google-http-client-android-test</artifactId>
   <name>Test project for google-http-client-android.</name>
-  <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-android-test:current} -->
+  <version>1.38.0</version><!-- {x-version-update:google-http-client-android-test:current} -->
   <packaging>apk</packaging>
 
   <build>
@@ -53,7 +53,7 @@
     <dependency>
       <groupId>com.google.http-client</groupId>
       <artifactId>google-http-client-android</artifactId>
-      <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-android:current} -->
+      <version>1.38.0</version><!-- {x-version-update:google-http-client-android:current} -->
       <exclusions>
         <exclusion>
           <artifactId>android</artifactId>
@@ -72,7 +72,7 @@
     <dependency>
       <groupId>com.google.http-client</groupId>
       <artifactId>google-http-client-test</artifactId>
-      <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-test:current} -->
+      <version>1.38.0</version><!-- {x-version-update:google-http-client-test:current} -->
       <exclusions>
         <exclusion>
           <artifactId>junit</artifactId>
diff --git a/google-http-client-android/pom.xml b/google-http-client-android/pom.xml
index 59903e46b..8cd8773d3 100644
--- a/google-http-client-android/pom.xml
+++ b/google-http-client-android/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>1.38.0</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-android</artifactId>
-  <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-android:current} -->
+  <version>1.38.0</version><!-- {x-version-update:google-http-client-android:current} -->
   <name>Android Platform Extensions to the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client-apache-v2/pom.xml b/google-http-client-apache-v2/pom.xml
index 579934408..3d2639282 100644
--- a/google-http-client-apache-v2/pom.xml
+++ b/google-http-client-apache-v2/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>1.38.0</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-apache-v2</artifactId>
-  <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-apache-v2:current} -->
+  <version>1.38.0</version><!-- {x-version-update:google-http-client-apache-v2:current} -->
   <name>Apache HTTP transport v2 for the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client-appengine/pom.xml b/google-http-client-appengine/pom.xml
index 5921940fb..7929813ff 100644
--- a/google-http-client-appengine/pom.xml
+++ b/google-http-client-appengine/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>1.38.0</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-appengine</artifactId>
-  <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-appengine:current} -->
+  <version>1.38.0</version><!-- {x-version-update:google-http-client-appengine:current} -->
   <name>Google App Engine extensions to the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client-assembly/pom.xml b/google-http-client-assembly/pom.xml
index 9532833ff..51df007cb 100644
--- a/google-http-client-assembly/pom.xml
+++ b/google-http-client-assembly/pom.xml
@@ -4,12 +4,12 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>1.38.0</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <groupId>com.google.http-client</groupId>
   <artifactId>google-http-client-assembly</artifactId>
-  <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-assembly:current} -->
+  <version>1.38.0</version><!-- {x-version-update:google-http-client-assembly:current} -->
   <packaging>pom</packaging>
   <name>Assembly for the Google HTTP Client Library for Java</name>
 
diff --git a/google-http-client-bom/pom.xml b/google-http-client-bom/pom.xml
index 4676215ee..be3fbb8b4 100644
--- a/google-http-client-bom/pom.xml
+++ b/google-http-client-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.http-client</groupId>
   <artifactId>google-http-client-bom</artifactId>
-  <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-bom:current} -->
+  <version>1.38.0</version><!-- {x-version-update:google-http-client-bom:current} -->
   <packaging>pom</packaging>
 
   <name>Google HTTP Client Library for Java BOM</name>
@@ -63,52 +63,52 @@
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client</artifactId>
-        <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client:current} -->
+        <version>1.38.0</version><!-- {x-version-update:google-http-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-android</artifactId>
-        <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-android:current} -->
+        <version>1.38.0</version><!-- {x-version-update:google-http-client-android:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-apache-v2</artifactId>
-        <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-apache-v2:current} -->
+        <version>1.38.0</version><!-- {x-version-update:google-http-client-apache-v2:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-appengine</artifactId>
-        <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-appengine:current} -->
+        <version>1.38.0</version><!-- {x-version-update:google-http-client-appengine:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-findbugs</artifactId>
-        <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-findbugs:current} -->
+        <version>1.38.0</version><!-- {x-version-update:google-http-client-findbugs:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-gson</artifactId>
-        <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-gson:current} -->
+        <version>1.38.0</version><!-- {x-version-update:google-http-client-gson:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-jackson2</artifactId>
-        <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-jackson2:current} -->
+        <version>1.38.0</version><!-- {x-version-update:google-http-client-jackson2:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-protobuf</artifactId>
-        <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-protobuf:current} -->
+        <version>1.38.0</version><!-- {x-version-update:google-http-client-protobuf:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-test</artifactId>
-        <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-test:current} -->
+        <version>1.38.0</version><!-- {x-version-update:google-http-client-test:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-xml</artifactId>
-        <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-xml:current} -->
+        <version>1.38.0</version><!-- {x-version-update:google-http-client-xml:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/google-http-client-findbugs/pom.xml b/google-http-client-findbugs/pom.xml
index 5a55e3353..35a618fd0 100644
--- a/google-http-client-findbugs/pom.xml
+++ b/google-http-client-findbugs/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>1.38.0</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-findbugs</artifactId>
-  <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-findbugs:current} -->
+  <version>1.38.0</version><!-- {x-version-update:google-http-client-findbugs:current} -->
   <name>Google APIs Client Library Findbugs custom plugin.</name>
 
   <build>
diff --git a/google-http-client-gson/pom.xml b/google-http-client-gson/pom.xml
index be5e7ffc3..d98d6862f 100644
--- a/google-http-client-gson/pom.xml
+++ b/google-http-client-gson/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>1.38.0</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-gson</artifactId>
-  <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-gson:current} -->
+  <version>1.38.0</version><!-- {x-version-update:google-http-client-gson:current} -->
   <name>GSON extensions to the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client-jackson2/pom.xml b/google-http-client-jackson2/pom.xml
index 216e79d8d..73ef20a78 100644
--- a/google-http-client-jackson2/pom.xml
+++ b/google-http-client-jackson2/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>1.38.0</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-jackson2</artifactId>
-  <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-jackson2:current} -->
+  <version>1.38.0</version><!-- {x-version-update:google-http-client-jackson2:current} -->
   <name>Jackson 2 extensions to the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client-protobuf/pom.xml b/google-http-client-protobuf/pom.xml
index a83780942..11602c374 100644
--- a/google-http-client-protobuf/pom.xml
+++ b/google-http-client-protobuf/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>1.38.0</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-protobuf</artifactId>
-  <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-protobuf:current} -->
+  <version>1.38.0</version><!-- {x-version-update:google-http-client-protobuf:current} -->
   <name>Protocol Buffer extensions to the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client-test/pom.xml b/google-http-client-test/pom.xml
index 79f88159e..ff83ff41e 100644
--- a/google-http-client-test/pom.xml
+++ b/google-http-client-test/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>1.38.0</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-test</artifactId>
-  <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-test:current} -->
+  <version>1.38.0</version><!-- {x-version-update:google-http-client-test:current} -->
   <name>Shared classes used for testing of artifacts in the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client-xml/pom.xml b/google-http-client-xml/pom.xml
index 591db8238..238f96746 100644
--- a/google-http-client-xml/pom.xml
+++ b/google-http-client-xml/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>1.38.0</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-xml</artifactId>
-  <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-xml:current} -->
+  <version>1.38.0</version><!-- {x-version-update:google-http-client-xml:current} -->
   <name>XML extensions to the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client/pom.xml b/google-http-client/pom.xml
index 86ffc4876..9b0c69810 100644
--- a/google-http-client/pom.xml
+++ b/google-http-client/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>1.38.0</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client</artifactId>
-  <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client:current} -->
+  <version>1.38.0</version><!-- {x-version-update:google-http-client:current} -->
   <name>Google HTTP Client Library for Java</name>
   <description>
     Google HTTP Client Library for Java. Functionality that works on all supported Java platforms,
diff --git a/pom.xml b/pom.xml
index 37d94bd05..41408f4ab 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.http-client</groupId>
   <artifactId>google-http-client-parent</artifactId>
-  <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
+  <version>1.38.0</version><!-- {x-version-update:google-http-client-parent:current} -->
   <packaging>pom</packaging>
   <name>Parent for the Google HTTP Client Library for Java</name>
   <description>Google HTTP Client Library for Java</description>
@@ -573,7 +573,7 @@
       - google-api-java-client/google-api-client-assembly/android-properties (make the filenames match the version here)
       - Internally, update the default features.json file
     -->
-    <project.http-client.version>1.37.1-SNAPSHOT</project.http-client.version><!-- {x-version-update:google-http-client-parent:current} -->
+    <project.http-client.version>1.38.0</project.http-client.version><!-- {x-version-update:google-http-client-parent:current} -->
     <project.appengine.version>1.9.71</project.appengine.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.jsr305.version>3.0.2</project.jsr305.version>
diff --git a/samples/dailymotion-simple-cmdline-sample/pom.xml b/samples/dailymotion-simple-cmdline-sample/pom.xml
index 8740cad9a..a4882f7ca 100644
--- a/samples/dailymotion-simple-cmdline-sample/pom.xml
+++ b/samples/dailymotion-simple-cmdline-sample/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>1.37.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>1.38.0</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../../pom.xml</relativePath>
   </parent>
   <artifactId>dailymotion-simple-cmdline-sample</artifactId>
diff --git a/versions.txt b/versions.txt
index ffacc2900..36e5b346b 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,17 +1,17 @@
 # Format:
 # module:released-version:current-version
 
-google-http-client:1.37.0:1.37.1-SNAPSHOT
-google-http-client-bom:1.37.0:1.37.1-SNAPSHOT
-google-http-client-parent:1.37.0:1.37.1-SNAPSHOT
-google-http-client-android:1.37.0:1.37.1-SNAPSHOT
-google-http-client-android-test:1.37.0:1.37.1-SNAPSHOT
-google-http-client-apache-v2:1.37.0:1.37.1-SNAPSHOT
-google-http-client-appengine:1.37.0:1.37.1-SNAPSHOT
-google-http-client-assembly:1.37.0:1.37.1-SNAPSHOT
-google-http-client-findbugs:1.37.0:1.37.1-SNAPSHOT
-google-http-client-gson:1.37.0:1.37.1-SNAPSHOT
-google-http-client-jackson2:1.37.0:1.37.1-SNAPSHOT
-google-http-client-protobuf:1.37.0:1.37.1-SNAPSHOT
-google-http-client-test:1.37.0:1.37.1-SNAPSHOT
-google-http-client-xml:1.37.0:1.37.1-SNAPSHOT
+google-http-client:1.38.0:1.38.0
+google-http-client-bom:1.38.0:1.38.0
+google-http-client-parent:1.38.0:1.38.0
+google-http-client-android:1.38.0:1.38.0
+google-http-client-android-test:1.38.0:1.38.0
+google-http-client-apache-v2:1.38.0:1.38.0
+google-http-client-appengine:1.38.0:1.38.0
+google-http-client-assembly:1.38.0:1.38.0
+google-http-client-findbugs:1.38.0:1.38.0
+google-http-client-gson:1.38.0:1.38.0
+google-http-client-jackson2:1.38.0:1.38.0
+google-http-client-protobuf:1.38.0:1.38.0
+google-http-client-test:1.38.0:1.38.0
+google-http-client-xml:1.38.0:1.38.0