diff --git a/docs/admin/maintenance/upgrade/index.md b/docs/admin/maintenance/upgrade/index.md
index 81b170b7..b49c20da 100644
--- a/docs/admin/maintenance/upgrade/index.md
+++ b/docs/admin/maintenance/upgrade/index.md
@@ -13,5 +13,6 @@ This section collects the guides you need when upgrading OpenCloud.
## Guides
- [Standard Upgrade Guide](./upgrade.md)
+- [Upgrade 7.x.x](./upgrade-7.x.x.md)
- [Upgrade 4.0.x](./upgrade-4.0.0.md)
- [Release notes](./release-notes.md)
diff --git a/docs/admin/maintenance/upgrade/release-notes.md b/docs/admin/maintenance/upgrade/release-notes.md
index d9fedda9..3eff738f 100644
--- a/docs/admin/maintenance/upgrade/release-notes.md
+++ b/docs/admin/maintenance/upgrade/release-notes.md
@@ -1,5 +1,5 @@
---
-sidebar_position: 3
+sidebar_position: 4
id: release-notes
title: Release Notes
description: Release Notes
diff --git a/docs/admin/maintenance/upgrade/upgrade-7.x.x.md b/docs/admin/maintenance/upgrade/upgrade-7.x.x.md
new file mode 100644
index 00000000..0dbff89c
--- /dev/null
+++ b/docs/admin/maintenance/upgrade/upgrade-7.x.x.md
@@ -0,0 +1,338 @@
+---
+sidebar_position: 4
+id: upgrade-7.x.x
+title: Upgrade 7.x.x
+description: Upgrading to OpenCloud 7.x.x
+draft: false
+---
+
+import Tabs from '@theme/Tabs'
+import TabItem from '@theme/TabItem'
+
+# Upgrading to OpenCloud 7.x.x
+
+This guide describes how to upgrade an existing OpenCloud deployment to OpenCloud 7.x.x.
+
+The guide applies to upgrades from:
+
+- OpenCloud 6.x rolling
+- OpenCloud 4.x stable
+
+It covers the required configuration migration, optional OpenSearch index rebuild, and web extension updates introduced with OpenCloud 7.x.x.
+
+## Before You Start
+
+- Make sure your current OpenCloud deployment runs OpenCloud 6.x rolling or OpenCloud 4.x stable.
+- Create a complete backup of your configuration and data.
+- Make sure you have access to your current `opencloud.yaml`.
+- Verify that your current deployment is healthy before upgrading.
+- Review the OpenCloud 7.x.x release notes before starting the upgrade.
+
+## Back Up Configuration and Data
+
+:::important
+
+Always create a backup before upgrading to prevent data loss.
+
+:::
+
+
+
+
+If your configuration and data are stored in host directories, create a copy of these directories.
+
+Example:
+
+```bash
+cp -a /mnt/opencloud/config /mnt/opencloud/config-backup
+cp -a /mnt/opencloud/data /mnt/opencloud/data-backup
+```
+
+Replace the paths with the directories used by your deployment.
+
+
+
+
+
+Create a backup directory and copy the configuration and data from the OpenCloud container.
+
+```bash
+mkdir -p ~/opencloud-backups
+docker cp opencloud-compose-opencloud-1:/etc/opencloud ~/opencloud-backups/config-backup
+docker cp opencloud-compose-opencloud-1:/var/lib/opencloud ~/opencloud-backups/data-backup
+```
+
+Replace `opencloud-compose-opencloud-1` with the name of your OpenCloud container if it differs.
+
+
+
+
+## Update the `opencloud-compose` Checkout
+
+If you use the `opencloud-compose` repository, update your local checkout before pulling the new container image.
+
+```bash
+cd /opencloud-compose
+git pull
+```
+
+Skip this step if you run OpenCloud with plain Docker.
+
+## Stop OpenCloud
+
+Stop the currently running OpenCloud instance.
+
+
+
+
+```bash
+docker compose stop
+```
+
+
+
+
+
+```bash
+docker stop opencloud
+```
+
+
+
+
+## Pull the OpenCloud 7.x.x Image
+
+Pull the OpenCloud 7.x.x image.
+
+```bash
+docker pull opencloudeu/opencloud:7.x.x
+```
+
+Replace `7.x.x` with the exact OpenCloud version you want to upgrade to.
+
+## Apply the Configuration Migration
+
+OpenCloud 7.x.x includes a breaking configuration change that must be applied before starting the upgraded instance.
+
+Reference: [Migration PR](https://github.com/opencloud-eu/opencloud/pull/2760)
+
+### Open a Temporary OpenCloud Container
+
+Open a shell in a temporary OpenCloud 7.x.x container and mount your OpenCloud configuration directory or configuration volume to `/etc/opencloud`.
+
+
+
+
+```bash
+docker run --rm -it --entrypoint /bin/sh -v ":/etc/opencloud" opencloudeu/opencloud:7.x.x
+```
+
+Replace `` with the Docker volume that contains your OpenCloud configuration.
+
+
+
+
+
+```bash
+docker run --rm -it --entrypoint /bin/sh -v ":/etc/opencloud" opencloudeu/opencloud:7.x.x
+```
+
+Replace `` with the host directory that contains your `opencloud.yaml`.
+
+
+
+
+### Generate the Configuration Diff
+
+Inside the temporary container, run:
+
+```bash
+opencloud init --diff
+```
+
+Example output:
+
+```diff
+diff -u /etc/opencloud/opencloud.yaml /etc/opencloud/opencloud.yaml.tmp
+--- /etc/opencloud/opencloud.yaml
++++ /etc/opencloud/opencloud.yaml.tmp
+@@ -90,6 +90,9 @@
+ sharing:
+ events:
+ tls_insecure: false
++service_account:
++ service_account_id: 00000000-0000-0000-0000-000000000000
++ service_account_secret: example-service-account-secret
+ storage_users:
+ events:
+ tls_insecure: false
+
+diff written to /etc/opencloud/opencloud.config.patch
+```
+
+The command creates the following patch file:
+
+```bash
+/etc/opencloud/opencloud.config.patch
+```
+
+### Apply the Configuration Patch
+
+Change to the configuration directory:
+
+```bash
+cd /etc/opencloud
+```
+
+Verify that the patch file was created:
+
+```bash
+ls
+```
+
+Example output:
+
+```bash
+banned-password-list.txt
+csp.yaml
+opencloud.config.patch
+opencloud.yaml
+opencloud.yaml.2026-05-19-15-45-44.backup
+```
+
+Test the patch before applying it:
+
+```bash
+patch --dry-run opencloud.yaml < opencloud.config.patch
+```
+
+Expected output:
+
+```bash
+checking file opencloud.yaml
+```
+
+Apply the patch:
+
+```bash
+patch opencloud.yaml < opencloud.config.patch
+```
+
+Expected output:
+
+```bash
+patching file opencloud.yaml
+```
+
+Verify that the following configuration entries exist in `opencloud.yaml`:
+
+```yaml
+service_account:
+ service_account_id: 00000000-0000-0000-0000-000000000000
+ service_account_secret: example-service-account-secret
+```
+
+### Exit the Temporary Container
+
+Exit the temporary container after applying the configuration patch.
+
+```bash
+exit
+```
+
+## Start OpenCloud
+
+Start OpenCloud with the upgraded image.
+
+
+
+
+```bash
+docker compose up -d
+```
+
+
+
+
+
+```bash
+docker start opencloud
+```
+
+
+
+
+## Rebuild the OpenSearch Index
+
+:::note
+
+This step is only required for instances that use OpenSearch.
+
+:::
+
+OpenCloud 7.x.x introduces a new OpenSearch index structure.
+
+Reference: [OpenSearch Index PR](https://github.com/opencloud-eu/opencloud/pull/2514)
+
+After upgrading, rebuild the search index.
+
+
+
+
+```bash
+docker exec -it opencloud opencloud search index --all-spaces
+```
+
+
+
+
+
+```bash
+docker compose exec opencloud opencloud search index --all-spaces
+```
+
+
+
+
+The indexing process can take longer on larger installations.
+
+## Update Web Extensions
+
+OpenCloud 7.x.x introduces breaking changes in the web client architecture.
+
+Older web extension versions are no longer compatible with OpenCloud 7.x.x and must be updated.
+
+New extension versions are available from:
+
+- The App Store inside the OpenCloud web interface
+- [OpenCloud Web Extensions on GitHub](https://github.com/opencloud-eu/web-extensions/releases)
+
+Download the latest extension versions and follow the [web applications installation guide](../../configuration/web-applications.md).
+
+## Verify the Upgrade
+
+After starting OpenCloud, verify that the instance works as expected.
+
+- Users can log in.
+- Existing shares are still available.
+- Public links work as expected.
+- Project spaces show the correct members and permissions.
+- Search returns expected results after rebuilding the OpenSearch index.
+- The container logs do not show upgrade-related errors.
+
+## Troubleshooting
+
+If issues occur during or after the upgrade:
+
+- Review the OpenCloud container logs.
+- Verify the generated changes in `opencloud.yaml`.
+- Re-run the configuration diff if required.
+- Restore the backup if the instance cannot be recovered.
+- Check the troubleshooting documentation.
+- Open an issue on GitHub if the issue persists.
+
+## Useful Resources
+
+- [OpenCloud Troubleshooting Guide](../../resources/common-issues.md)
+- [OpenCloud GitHub Issues](https://github.com/opencloud-eu/opencloud/issues)
+- [OpenCloud Web Extensions Releases](https://github.com/opencloud-eu/web-extensions/releases)