diff --git a/CHANGELOG.md b/CHANGELOG.md
index 658dddfb6..a6692e628 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [1.124.0](https://github.com/googleapis/java-pubsub/compare/v1.123.20...v1.124.0) (2023-07-27)
+
+
+### Features
+
+* Setup 1.123.x lts branch ([#1676](https://github.com/googleapis/java-pubsub/issues/1676)) ([a60b887](https://github.com/googleapis/java-pubsub/commit/a60b88772d69d367f90bbe61bc4e157338193b0f))
+
+
+### Documentation
+
+* Clarified where ordering_key will be written if write_metadata is set ([#1675](https://github.com/googleapis/java-pubsub/issues/1675)) ([462746c](https://github.com/googleapis/java-pubsub/commit/462746cfbf9b712118b67349f2f4f4cebf45932a))
+
 ## [1.123.20](https://github.com/googleapis/java-pubsub/compare/v1.123.19...v1.123.20) (2023-07-25)
 
 
diff --git a/google-cloud-pubsub-bom/pom.xml b/google-cloud-pubsub-bom/pom.xml
index e169738f4..1b1c22f9b 100644
--- a/google-cloud-pubsub-bom/pom.xml
+++ b/google-cloud-pubsub-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-pubsub-bom</artifactId>
-  <version>1.123.21-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+  <version>1.124.0</version><!-- {x-version-update:google-cloud-pubsub:current} -->
   <packaging>pom</packaging>
   <parent>
     <groupId>com.google.cloud</groupId>
@@ -52,17 +52,17 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-pubsub</artifactId>
-        <version>1.123.21-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+        <version>1.124.0</version><!-- {x-version-update:google-cloud-pubsub:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-pubsub-v1</artifactId>
-        <version>1.105.21-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
+        <version>1.106.0</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-pubsub-v1</artifactId>
-        <version>1.105.21-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-pubsub-v1:current} -->
+        <version>1.106.0</version><!-- {x-version-update:proto-google-cloud-pubsub-v1:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/google-cloud-pubsub/pom.xml b/google-cloud-pubsub/pom.xml
index ec268acff..21457228c 100644
--- a/google-cloud-pubsub/pom.xml
+++ b/google-cloud-pubsub/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-pubsub</artifactId>
-  <version>1.123.21-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+  <version>1.124.0</version><!-- {x-version-update:google-cloud-pubsub:current} -->
   <packaging>jar</packaging>
   <name>Google Cloud Pub/Sub</name>
   <url>https://github.com/googleapis/java-pubsub</url>
@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-pubsub-parent</artifactId>
-    <version>1.123.21-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+    <version>1.124.0</version><!-- {x-version-update:google-cloud-pubsub:current} -->
   </parent>
   <properties>
     <site.installationModule>google-cloud-pubsub</site.installationModule>
diff --git a/grpc-google-cloud-pubsub-v1/pom.xml b/grpc-google-cloud-pubsub-v1/pom.xml
index 68180f762..78490937c 100644
--- a/grpc-google-cloud-pubsub-v1/pom.xml
+++ b/grpc-google-cloud-pubsub-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-pubsub-v1</artifactId>
-  <version>1.105.21-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
+  <version>1.106.0</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
   <name>grpc-google-cloud-pubsub-v1</name>
   <description>GRPC library for grpc-google-cloud-pubsub-v1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-pubsub-parent</artifactId>
-    <version>1.123.21-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+    <version>1.124.0</version><!-- {x-version-update:google-cloud-pubsub:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/pom.xml b/pom.xml
index 3fdac3b70..67d7cf6f6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-pubsub-parent</artifactId>
   <packaging>pom</packaging>
-  <version>1.123.21-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+  <version>1.124.0</version><!-- {x-version-update:google-cloud-pubsub:current} -->
   <name>Google Cloud Pub/Sub Parent</name>
   <url>https://github.com/googleapis/java-pubsub</url>
   <description>
@@ -69,17 +69,17 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-pubsub-v1</artifactId>
-        <version>1.105.21-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-pubsub-v1:current} -->
+        <version>1.106.0</version><!-- {x-version-update:proto-google-cloud-pubsub-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-pubsub-v1</artifactId>
-        <version>1.105.21-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
+        <version>1.106.0</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-pubsub</artifactId>
-        <version>1.123.21-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+        <version>1.124.0</version><!-- {x-version-update:google-cloud-pubsub:current} -->
       </dependency>
 
       <!-- Test dependencies -->
diff --git a/proto-google-cloud-pubsub-v1/pom.xml b/proto-google-cloud-pubsub-v1/pom.xml
index 02061cfcf..37bda9ac2 100644
--- a/proto-google-cloud-pubsub-v1/pom.xml
+++ b/proto-google-cloud-pubsub-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-pubsub-v1</artifactId>
-  <version>1.105.21-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-pubsub-v1:current} -->
+  <version>1.106.0</version><!-- {x-version-update:proto-google-cloud-pubsub-v1:current} -->
   <name>proto-google-cloud-pubsub-v1</name>
   <description>PROTO library for proto-google-cloud-pubsub-v1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-pubsub-parent</artifactId>
-    <version>1.123.21-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+    <version>1.124.0</version><!-- {x-version-update:google-cloud-pubsub:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index 48f2c95d7..59308ca32 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -43,7 +43,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-pubsub</artifactId>
-      <version>1.123.21-SNAPSHOT</version>
+      <version>1.124.0</version>
     </dependency>
     <!-- {x-version-update-end} -->
 
diff --git a/versions.txt b/versions.txt
index 4851e4d73..741c90de5 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,6 +1,6 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-pubsub:1.123.20:1.123.21-SNAPSHOT
-grpc-google-cloud-pubsub-v1:1.105.20:1.105.21-SNAPSHOT
-proto-google-cloud-pubsub-v1:1.105.20:1.105.21-SNAPSHOT
+google-cloud-pubsub:1.124.0:1.124.0
+grpc-google-cloud-pubsub-v1:1.106.0:1.106.0
+proto-google-cloud-pubsub-v1:1.106.0:1.106.0