diff --git a/CHANGELOG.md b/CHANGELOG.md
index d15465d28..b58643761 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # CHANGELOG
 
+## v8.10.0 (2026-10-29)
+
+- Adds `manufacturerProductId` and `standardizedProductId` to `CustomsItem`
+- Adds `address` to `TaxIdentifier`
+
 ## v8.9.0 (2026-10-27)
 
 - Adds `surcharges` property and model to `Rate` object
diff --git a/README.md b/README.md
index 3fb1d07ed..6162c3a21 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ Add this to your project's POM:
 <dependency>
   <groupId>com.easypost</groupId>
   <artifactId>easypost-api-client</artifactId>
-  <version>8.9.0</version>
+  <version>8.10.0</version>
 </dependency>
 ```
 
@@ -25,7 +25,7 @@ Add this to your project's POM:
 Add this to your project's build file:
 
 ```groovy
-implementation "com.easypost:easypost-api-client:8.9.0"
+implementation "com.easypost:easypost-api-client:8.10.0"
 ```
 
 **NOTE:** [Google Gson](http://code.google.com/p/google-gson/) is required.
diff --git a/VERSION b/VERSION
index e5c15102d..7f6758ef9 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-8.9.0
+8.10.0
diff --git a/pom.xml b/pom.xml
index 12c37c906..f2a528697 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
     <groupId>com.easypost</groupId>
     <artifactId>easypost-api-client</artifactId>
 
-    <version>8.9.0</version>
+    <version>8.10.0</version>
     <packaging>jar</packaging>
 
     <name>com.easypost:easypost-api-client</name>
diff --git a/src/main/java/com/easypost/model/CustomsItem.java b/src/main/java/com/easypost/model/CustomsItem.java
index a0308becb..1bde98984 100644
--- a/src/main/java/com/easypost/model/CustomsItem.java
+++ b/src/main/java/com/easypost/model/CustomsItem.java
@@ -12,4 +12,6 @@ public final class CustomsItem extends EasyPostResource {
     private Float weight;
     private String code;
     private String currency;
+    private String manufacturerProductId;
+    private String standardizedProductId;
 }
diff --git a/src/main/java/com/easypost/model/TaxIdentifier.java b/src/main/java/com/easypost/model/TaxIdentifier.java
index 3c9b21a58..db0b01761 100644
--- a/src/main/java/com/easypost/model/TaxIdentifier.java
+++ b/src/main/java/com/easypost/model/TaxIdentifier.java
@@ -8,4 +8,5 @@ public final class TaxIdentifier extends EasyPostResource {
     private String taxId;
     private String taxIdType;
     private String issuingCountry;
+    private Address address;
 }