Add new release notes (#2238)

Author: bot-sdk-js

docs-java/release-notes/release-notes-15-to-29.mdx

@@ -1,3 +1,21 @@
+## 5.22.0 - August 29, 2025
+
+[All Release Changes](https://github.com/SAP/cloud-sdk-java/releases/tag/rel%2F5.22.0)
+
+### ✨ New Functionality
+
+- Add built-in support for the [Transparent Proxy](https://help.sap.com/docs/connectivity/sap-btp-connectivity-cf/transparent-proxy-for-kubernetes) via a new `TransparentProxyDestination`.
+  For more information, refer to the [documentation](https://sap.github.io/cloud-sdk/docs/java/features/connectivity/transparent-proxy).
+- Add _experimental_ support for cross-level destination consumption via a new `CrossLevelScope` setting under `DestinationServiceOptionsAugmenter`.
+- Add _experimental_ support for setting custom headers in requests to the destination service via the new `DestinationServiceOptionsAugmenter#customHeaders`.
+
+### 🐛 Fixed Issues
+
+- [OpenAPI] Fix code generator for transitive dependency version inconsistencies for Jackson.
+- [ODatav4] Fix incorrect HTTP header name when sending entity version identifier in bound-action requests.
+- [ODatav4] Fix an issue when generating clients.
+  - Property names: `value`, `item` and `properties` are now allowed.
+
 ## 5.21.0 - August 01, 2025
 
 [All Release Changes](https://github.com/SAP/cloud-sdk-java/releases/tag/rel%2F5.21.0)