diff --git a/CHANGELOG.md b/CHANGELOG.md
index 06ea4b28d..fd9b7a0ac 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## [1.123.18](https://github.com/googleapis/java-pubsub/compare/v1.123.17...v1.123.18) (2023-07-17)
+
+
+### Documentation
+
+* Tightened requirements on cloud storage subscription filename suffixes ([#1639](https://github.com/googleapis/java-pubsub/issues/1639)) ([34a182a](https://github.com/googleapis/java-pubsub/commit/34a182a1655c843cd728850b278ba2e9ce9a5680))
+
+
+### Dependencies
+
+* Update dependency com.google.cloud:google-cloud-core to v2.21.0 ([#1650](https://github.com/googleapis/java-pubsub/issues/1650)) ([69879d4](https://github.com/googleapis/java-pubsub/commit/69879d4c9d7a220f9c5a38b144d49e71ad3b94d0))
+* Update dependency com.google.cloud:google-cloud-shared-dependencies to v3.13.0 ([#1651](https://github.com/googleapis/java-pubsub/issues/1651)) ([83fdbe2](https://github.com/googleapis/java-pubsub/commit/83fdbe2435d8fa03b5648272a794874ff910fcb6))
+* Update dependency com.google.protobuf:protobuf-java-util to v3.23.4 ([#1649](https://github.com/googleapis/java-pubsub/issues/1649)) ([9f9c5ca](https://github.com/googleapis/java-pubsub/commit/9f9c5ca2abddde274c79cf36bf2aea91b7b8b455))
+* Update dependency org.apache.avro:avro to v1.11.2 ([#1646](https://github.com/googleapis/java-pubsub/issues/1646)) ([5859fe4](https://github.com/googleapis/java-pubsub/commit/5859fe4c6540fa577942f38e117798d3c3cdc498))
+* Update dependency org.xerial.snappy:snappy-java to v1.1.10.2 ([#1654](https://github.com/googleapis/java-pubsub/issues/1654)) ([05445f0](https://github.com/googleapis/java-pubsub/commit/05445f0ccf1cd78a604ec267d7a146cdd1770c59))
+
 ## [1.123.17](https://github.com/googleapis/java-pubsub/compare/v1.123.16...v1.123.17) (2023-06-26)
 
 
diff --git a/google-cloud-pubsub-bom/pom.xml b/google-cloud-pubsub-bom/pom.xml
index fe4098d82..c71fbb398 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>1.123.18-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+  <version>1.123.18</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>1.123.18-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+        <version>1.123.18</version><!-- {x-version-update:google-cloud-pubsub:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-pubsub-v1</artifactId>
-        <version>1.105.18-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
+        <version>1.105.18</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>1.105.18-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-pubsub-v1:current} -->
+        <version>1.105.18</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 c6726e8ab..63a8167c3 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>1.123.18-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+  <version>1.123.18</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>1.123.18-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+    <version>1.123.18</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 06791f02d..e8f65f9ea 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>1.105.18-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
+  <version>1.105.18</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>1.123.18-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+    <version>1.123.18</version><!-- {x-version-update:google-cloud-pubsub:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/pom.xml b/pom.xml
index 466ab2a63..c63e2dfba 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>1.123.18-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+  <version>1.123.18</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>1.105.18-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-pubsub-v1:current} -->
+        <version>1.105.18</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>1.105.18-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
+        <version>1.105.18</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-pubsub</artifactId>
-        <version>1.123.18-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+        <version>1.123.18</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 2ebad2547..661e9021e 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>1.105.18-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-pubsub-v1:current} -->
+  <version>1.105.18</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>1.123.18-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+    <version>1.123.18</version><!-- {x-version-update:google-cloud-pubsub:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index 039476597..3063bf1e9 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>1.123.18-SNAPSHOT</version>
+      <version>1.123.18</version>
     </dependency>
     <!-- {x-version-update-end} -->
 
diff --git a/versions.txt b/versions.txt
index 550d82af4..37a541348 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,6 +1,6 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-pubsub:1.123.17:1.123.18-SNAPSHOT
-grpc-google-cloud-pubsub-v1:1.105.17:1.105.18-SNAPSHOT
-proto-google-cloud-pubsub-v1:1.105.17:1.105.18-SNAPSHOT
+google-cloud-pubsub:1.123.18:1.123.18
+grpc-google-cloud-pubsub-v1:1.105.18:1.105.18
+proto-google-cloud-pubsub-v1:1.105.18:1.105.18