diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 31d82388..b8af36c3 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.28.0"
+  ".": "1.29.0"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 450d030b..cd5d3cc6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [1.29.0](https://github.com/orbcorp/orb-java/compare/v1.28.0...v1.29.0) (2026-09-07)
+
+
+### Features
+
+* **api:** add `tiered_matrix_with_allocation` price model ([4dd644a](https://github.com/orbcorp/orb-java/commit/4dd644adbc5a2fb9ee04cfb7f3dcca807c464cb8))
+
 ## [1.28.0](https://github.com/orbcorp/orb-java/compare/v1.27.0...v1.28.0) (2026-09-04)
 
 
diff --git a/README.md b/README.md
index 5fb0c059..70109184 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 <!-- x-release-please-start-version -->
 
-[![Maven Central](https://img.shields.io/maven-central/v/com.withorb.api/orb-java)](https://central.sonatype.com/artifact/com.withorb.api/orb-java/1.28.0)
+[![Maven Central](https://img.shields.io/maven-central/v/com.withorb.api/orb-java)](https://central.sonatype.com/artifact/com.withorb.api/orb-java/1.29.0)
 
 <!-- x-release-please-end -->
 
@@ -19,7 +19,7 @@ The REST API documentation can be found on [docs.withorb.com](https://docs.witho
 ### Gradle
 
 ```kotlin
-implementation("com.withorb.api:orb-java:1.28.0")
+implementation("com.withorb.api:orb-java:1.29.0")
 ```
 
 ### Maven
@@ -28,7 +28,7 @@ implementation("com.withorb.api:orb-java:1.28.0")
 <dependency>
   <groupId>com.withorb.api</groupId>
   <artifactId>orb-java</artifactId>
-  <version>1.28.0</version>
+  <version>1.29.0</version>
 </dependency>
 ```
 
diff --git a/build.gradle.kts b/build.gradle.kts
index a8a902cd..7ecfc1e4 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,6 +1,6 @@
 allprojects {
     group = "com.withorb.api"
-    version = "1.28.0" // x-release-please-version
+    version = "1.29.0" // x-release-please-version
 }
 
 subprojects {