diff --git a/CHANGELOG.md b/CHANGELOG.md
index 811d7b19a..792adb0ac 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,27 @@
 # Changelog
 
+## [4.8.0](https://github.com/googleapis/java-dialogflow/compare/v4.7.5...v4.8.0) (2022-08-05)
+
+
+### Features
+
+* deprecated the filter field and add resource_definition ([4d65ea6](https://github.com/googleapis/java-dialogflow/commit/4d65ea6b9dbad39efcb2776c1d112121f55ad896))
+* provide new parameter cx_current_page, the unique identifier of the CX page to override the `current_page` in the session. Add filter field to ListAnswerRecordsRequest. And add AudioInput to analysis requests ([4d65ea6](https://github.com/googleapis/java-dialogflow/commit/4d65ea6b9dbad39efcb2776c1d112121f55ad896))
+
+
+### Dependencies
+
+* update dependency com.google.cloud:google-cloud-core to v2.8.8 ([#979](https://github.com/googleapis/java-dialogflow/issues/979)) ([695aea7](https://github.com/googleapis/java-dialogflow/commit/695aea7c81ff2fbdd9186dadc047cf36201196ba))
+
+
+### Documentation
+
+* add more meaningful comments ([4d65ea6](https://github.com/googleapis/java-dialogflow/commit/4d65ea6b9dbad39efcb2776c1d112121f55ad896))
+* add more meaningful comments ([4d65ea6](https://github.com/googleapis/java-dialogflow/commit/4d65ea6b9dbad39efcb2776c1d112121f55ad896))
+* added an explicit note that DetectIntentRequest's text input is limited by 256 characters ([4d65ea6](https://github.com/googleapis/java-dialogflow/commit/4d65ea6b9dbad39efcb2776c1d112121f55ad896))
+* **owlbot-java:** explaining why not using formatter in pom.xml ([#1511](https://github.com/googleapis/java-dialogflow/issues/1511)) ([#973](https://github.com/googleapis/java-dialogflow/issues/973)) ([1e04116](https://github.com/googleapis/java-dialogflow/commit/1e04116887b60cf39559462ca8234227af090356)), closes [#1502](https://github.com/googleapis/java-dialogflow/issues/1502)
+* updated some method comments and added an explicit note that DetectIntentRequest's text input is limited by 256 characters ([#954](https://github.com/googleapis/java-dialogflow/issues/954)) ([4d65ea6](https://github.com/googleapis/java-dialogflow/commit/4d65ea6b9dbad39efcb2776c1d112121f55ad896))
+
 ## [4.7.5](https://github.com/googleapis/java-dialogflow/compare/v4.7.4...v4.7.5) (2022-08-03)
 
 
diff --git a/google-cloud-dialogflow-bom/pom.xml b/google-cloud-dialogflow-bom/pom.xml
index 33069002a..a73ba9589 100644
--- a/google-cloud-dialogflow-bom/pom.xml
+++ b/google-cloud-dialogflow-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-dialogflow-bom</artifactId>
-  <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+  <version>4.8.0</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   <packaging>pom</packaging>
   <parent>
     <groupId>com.google.cloud</groupId>
@@ -52,27 +52,27 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-dialogflow</artifactId>
-        <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+        <version>4.8.0</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-dialogflow-v2beta1</artifactId>
-        <version>0.105.6-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2beta1:current} -->
+        <version>0.106.0</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-dialogflow-v2</artifactId>
-        <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2:current} -->
+        <version>4.8.0</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-dialogflow-v2</artifactId>
-        <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2:current} -->
+        <version>4.8.0</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-dialogflow-v2beta1</artifactId>
-        <version>0.105.6-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2beta1:current} -->
+        <version>0.106.0</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2beta1:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/google-cloud-dialogflow/pom.xml b/google-cloud-dialogflow/pom.xml
index bac890cbf..63202df8d 100644
--- a/google-cloud-dialogflow/pom.xml
+++ b/google-cloud-dialogflow/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-dialogflow</artifactId>
-  <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+  <version>4.8.0</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   <packaging>jar</packaging>
   <name>Google Cloud Dialog Flow API</name>
   <url>https://github.com/googleapis/java-dialogflow</url>
@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-dialogflow-parent</artifactId>
-    <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+    <version>4.8.0</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   </parent>
   <properties>
     <site.installationModule>google-cloud-dialogflow</site.installationModule>
diff --git a/grpc-google-cloud-dialogflow-v2/pom.xml b/grpc-google-cloud-dialogflow-v2/pom.xml
index f1f110e17..7dee82cff 100644
--- a/grpc-google-cloud-dialogflow-v2/pom.xml
+++ b/grpc-google-cloud-dialogflow-v2/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-dialogflow-v2</artifactId>
-  <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2:current} -->
+  <version>4.8.0</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2:current} -->
   <name>grpc-google-cloud-dialogflow-v2</name>
   <description>GRPC library for grpc-google-cloud-dialogflow-v2</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-dialogflow-parent</artifactId>
-    <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+    <version>4.8.0</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/grpc-google-cloud-dialogflow-v2beta1/pom.xml b/grpc-google-cloud-dialogflow-v2beta1/pom.xml
index b7687e423..3c9f9a514 100644
--- a/grpc-google-cloud-dialogflow-v2beta1/pom.xml
+++ b/grpc-google-cloud-dialogflow-v2beta1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-dialogflow-v2beta1</artifactId>
-  <version>0.105.6-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2beta1:current} -->
+  <version>0.106.0</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2beta1:current} -->
   <name>grpc-google-cloud-dialogflow-v2beta1</name>
   <description>GRPC library for grpc-google-cloud-dialogflow-v2beta1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-dialogflow-parent</artifactId>
-    <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+    <version>4.8.0</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/pom.xml b/pom.xml
index 0a32d6d1c..78bb5691f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-dialogflow-parent</artifactId>
   <packaging>pom</packaging>
-  <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+  <version>4.8.0</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   <name>Google Cloud Dialog Flow API Parent</name>
   <url>https://github.com/googleapis/java-dialogflow</url>
   <description>
@@ -61,27 +61,27 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-dialogflow-v2</artifactId>
-        <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2:current} -->
+        <version>4.8.0</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-dialogflow-v2beta1</artifactId>
-        <version>0.105.6-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2beta1:current} -->
+        <version>0.106.0</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-dialogflow-v2beta1</artifactId>
-        <version>0.105.6-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2beta1:current} -->
+        <version>0.106.0</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-dialogflow-v2</artifactId>
-        <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2:current} -->
+        <version>4.8.0</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-dialogflow</artifactId>
-        <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+        <version>4.8.0</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
diff --git a/proto-google-cloud-dialogflow-v2/pom.xml b/proto-google-cloud-dialogflow-v2/pom.xml
index 486c7c3d9..d7ea04fb3 100644
--- a/proto-google-cloud-dialogflow-v2/pom.xml
+++ b/proto-google-cloud-dialogflow-v2/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-dialogflow-v2</artifactId>
-  <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2:current} -->
+  <version>4.8.0</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2:current} -->
   <name>proto-google-cloud-dialogflow-v2</name>
   <description>PROTO library for proto-google-cloud-dialogflow-v2</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-dialogflow-parent</artifactId>
-    <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+    <version>4.8.0</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/proto-google-cloud-dialogflow-v2beta1/pom.xml b/proto-google-cloud-dialogflow-v2beta1/pom.xml
index 8ca6dfec2..74f10b135 100644
--- a/proto-google-cloud-dialogflow-v2beta1/pom.xml
+++ b/proto-google-cloud-dialogflow-v2beta1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-dialogflow-v2beta1</artifactId>
-  <version>0.105.6-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2beta1:current} -->
+  <version>0.106.0</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2beta1:current} -->
   <name>proto-google-cloud-dialogflow-v2beta1</name>
   <description>PROTO library for proto-google-cloud-dialogflow-v2beta1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-dialogflow-parent</artifactId>
-    <version>4.7.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+    <version>4.8.0</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/versions.txt b/versions.txt
index bb187c48d..68377b454 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,8 +1,8 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-dialogflow:4.7.5:4.7.6-SNAPSHOT
-grpc-google-cloud-dialogflow-v2beta1:0.105.5:0.105.6-SNAPSHOT
-grpc-google-cloud-dialogflow-v2:4.7.5:4.7.6-SNAPSHOT
-proto-google-cloud-dialogflow-v2:4.7.5:4.7.6-SNAPSHOT
-proto-google-cloud-dialogflow-v2beta1:0.105.5:0.105.6-SNAPSHOT
+google-cloud-dialogflow:4.8.0:4.8.0
+grpc-google-cloud-dialogflow-v2beta1:0.106.0:0.106.0
+grpc-google-cloud-dialogflow-v2:4.8.0:4.8.0
+proto-google-cloud-dialogflow-v2:4.8.0:4.8.0
+proto-google-cloud-dialogflow-v2beta1:0.106.0:0.106.0