docs: calens changelog updated

Author: ownclouders

CHANGELOG.md

@@ -1,5 +1,6 @@
 # Table of Contents
 
+* [Changelog for unreleased](#changelog-for-owncloud-android-client-unreleased-unreleased)
 * [Changelog for 4.5.1](#changelog-for-owncloud-android-client-451-2025-04-03)
 * [Changelog for 4.5.0](#changelog-for-owncloud-android-client-450-2025-03-24)
 * [Changelog for 4.4.1](#changelog-for-owncloud-android-client-441-2024-10-30)
@@ -26,6 +27,27 @@
 * [Changelog for 2.18.1](#changelog-for-owncloud-android-client-2181-2021-07-20)
 * [Changelog for 2.18.0](#changelog-for-owncloud-android-client-2180-2021-05-24)
 * [Changelog for 2.17 versions and below](#changelog-for-217-versions-and-below)
+# Changelog for ownCloud Android Client [unreleased] (UNRELEASED)
+
+The following sections list the changes in ownCloud Android Client unreleased relevant to
+ownCloud admins and users.
+
+[unreleased]: https://github.com/owncloud/android/compare/v4.5.1...master
+
+## Summary
+
+* Change - Bump target SDK to 35: [#4529](https://github.com/owncloud/android/issues/4529)
+
+## Details
+
+* Change - Bump target SDK to 35: [#4529](https://github.com/owncloud/android/issues/4529)
+
+   Target SDK has been upgraded to 35 in order to fulfill Android platform
+   requirements.
+
+   https://github.com/owncloud/android/issues/4529
+   https://github.com/owncloud/android/pull/4556
+
 # Changelog for ownCloud Android Client [4.5.1] (2025-04-03)
 
 The following sections list the changes in ownCloud Android Client 4.5.1 relevant to