diff --git a/AiPlatform/VERSION b/AiPlatform/VERSION
index d21d277be513..4e8f395fa5e3 100644
--- a/AiPlatform/VERSION
+++ b/AiPlatform/VERSION
@@ -1 +1 @@
-0.25.0
+0.26.0
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8a44ebd43484..8b475be53d9d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## 0.222.0
+
+<details><summary>google/cloud-ai-platform 0.26.0</summary>
+
+
+
+### Features
+
+* Add DatasetVersion and dataset version RPCs to DatasetService ([#6672](https://github.com/googleapis/google-cloud-php/issues/6672)) ([c8ab13d](https://github.com/googleapis/google-cloud-php/commit/c8ab13d20fa205f8cc2007be256cbdc14d767cf9))
+* Add PersistentDiskSpec ([c8ab13d](https://github.com/googleapis/google-cloud-php/commit/c8ab13d20fa205f8cc2007be256cbdc14d767cf9))
+
+</details>
+
 ## 0.221.0
 
 <details><summary>google/cloud-advisorynotifications 0.5.0</summary>
diff --git a/composer.json b/composer.json
index d14d20e3db3d..13bc4638202d 100644
--- a/composer.json
+++ b/composer.json
@@ -74,7 +74,7 @@
         "google/analytics-data": "0.11.1",
         "google/cloud-access-approval": "1.1.2",
         "google/cloud-advisorynotifications": "0.5.0",
-        "google/cloud-ai-platform": "0.25.0",
+        "google/cloud-ai-platform": "0.26.0",
         "google/cloud-alloydb": "0.7.0",
         "google/cloud-api-gateway": "1.2.0",
         "google/cloud-api-keys": "0.3.1",