v-scharf · Oct 27, 2026 · Oct 27, 2026 · Oct 27, 2026 · Oct 27, 2026 · Oct 27, 2026
diff --git a/docs/admin/maintenance/upgrade/upgrade-9.x.x.md b/docs/admin/maintenance/upgrade/upgrade-9.x.x.md
@@ -0,0 +1,75 @@
+---
+sidebar_position: 14
+id: upgrade-9.x.x
+title: Upgrade 9.x.x
+description: Upgrading to OpenCloud 9.x.x
+draft: false
+---
+
+# Upgrading to OpenCloud 9.x.x
+
+OpenCloud 9.x.x adds guest links and moves thumbnail generation into the webdav service. Complete the regular upgrade first by following the [Standard Upgrade Guide](./upgrade.md).
+
+:::important
+
+OpenCloud 9.x.x is a Rolling release and is not intended for production environments. For more information, see the [Release Lifecycle](../../resources/lifecycle.md).
+
+:::
+
+## Quick upgrade
+
+Set the new version in your `.env` (`OC_DOCKER_TAG`) and restart:
+
+```bash
+docker compose pull opencloud
+docker compose up -d
+```
+
+OpenCloud 9.x.x starts with the existing 8.x.x configuration. Guest links stay disabled until you enable them.
+
+## Thumbnails
+
+Existing previews keep working.
+
+- The cache moves to `thumbnails/cache` and is created automatically. The old `thumbnails/files` folder is no longer used and can be removed:
+
+  ```bash
+  docker compose exec opencloud rm -r /var/lib/opencloud/thumbnails/files
+  ```
+
+  If you configured a custom `OC_BASE_DATA_PATH`, replace `/var/lib/opencloud` with the configured path.
+
+- Sizes are edge lengths, rounded up per axis, with a maximum of 2048 px.
+- Old `THUMBNAILS_*` variable names are still read. Removed ones are ignored.
+- YAML keys are **not** read from the old place. If you set thumbnail settings in `opencloud.yaml`, move them to `webdav: thumbnails:` before restarting.
+- If services run in separate containers, set `WEBDAV_THUMBNAILS_GENERATOR_URL=http://thumbnails:9186`.
+
+Details: [webdav MIGRATION.md](https://github.com/opencloud-eu/opencloud/blob/main/services/webdav/MIGRATION.md).
+
+## Guest links
+
+Guest links are disabled by default. To enable them, migrate the configuration first. Open a shell in the config volume:
+
+```bash
+docker run --rm -it --user 1000:1000 --entrypoint /bin/sh \
+  -v <opencloud-config-volume>:/etc/opencloud \
+  opencloudeu/opencloud-rolling:9.0.0
+```
+
+Replace `<opencloud-config-volume>` with the Docker volume or bind mount that contains your OpenCloud configuration.
+
+Inside the container, create and apply the patch:
+
+```bash
+cd /etc/opencloud
+opencloud init --diff
+patch opencloud.yaml < opencloud.config.patch
+```
+
+The patch adds `auth_guest.service_account` and removes `thumbnails.thumbnail`.
+
+Then set `OC_ENABLE_GUEST_LINKS=true`, configure SMTP for the notifications service and restart OpenCloud. Guests get their link and PIN by email.
+
+## Space quota
+
+If `GRAPH_SPACES_DEFAULT_QUOTA` is set, rename it to `OC_SPACES_DEFAULT_QUOTA`. The `spaces.default_quota` capability reads only the new name, so clients see the default 1 GB otherwise.
diff --git a/docs/admin/resources/lifecycle.md b/docs/admin/resources/lifecycle.md
@@ -35,7 +35,7 @@ With LTS, businesses can continue using an older production release without need
   <TabItem value="rolling" label="Rolling" default>
     | Version | Release Date | Release Notes & Download|
     |:--------|:-------------|:--------------|
-    | v8.2.0 | TBD | TBD |
+    | v9.0.0 | 2026 October 27 | [Details · Download](https://github.com/opencloud-eu/opencloud/releases/tag/v9.0.0) |
     | v8.1.0 | 2026 October 5 | [Details · Download](https://github.com/opencloud-eu/opencloud/releases/tag/v8.1.0) |
     | v8.0.1 | 2026 September 16 | [Details · Download](https://github.com/opencloud-eu/opencloud/releases/tag/v8.0.1) |
     | v8.0.0 | 2026 September 15 | [Details · Download](https://github.com/opencloud-eu/opencloud/releases/tag/v8.0.0) |

diff --git a/versioned_docs/version-4.0/admin/resources/lifecycle.md b/versioned_docs/version-4.0/admin/resources/lifecycle.md
@@ -29,7 +29,7 @@ With LTS, businesses can continue using an older production release without need
   <TabItem value="rolling" label="Rolling" default>
     | Version | Release Date | Release Notes & Download|
     |:--------|:-------------|:--------------|
-    | v8.2.0 | TBD | TBD |
+    | v9.0.0 | 2026 October 27 | [Details · Download](https://github.com/opencloud-eu/opencloud/releases/tag/v9.0.0) |
     | v8.1.0 | 2026 October 5 | [Details · Download](https://github.com/opencloud-eu/opencloud/releases/tag/v8.1.0) |
     | v8.0.1 | 2026 September 16 | [Details · Download](https://github.com/opencloud-eu/opencloud/releases/tag/v8.0.1) |
     | v8.0.0 | 2026 September 15 | [Details · Download](https://github.com/opencloud-eu/opencloud/releases/tag/v8.0.0) |

diff --git a/versioned_docs/version-7.2/admin/resources/lifecycle.md b/versioned_docs/version-7.2/admin/resources/lifecycle.md
@@ -29,7 +29,7 @@ With LTS, businesses can continue using an older production release without need
   <TabItem value="rolling" label="Rolling" default>
     | Version | Release Date | Release Notes & Download|
     |:--------|:-------------|:--------------|
-    | v8.2.0 | TBD | TBD |
+    | v9.0.0 | 2026 October 27 | [Details · Download](https://github.com/opencloud-eu/opencloud/releases/tag/v9.0.0) |
     | v8.1.0 | 2026 October 5 | [Details · Download](https://github.com/opencloud-eu/opencloud/releases/tag/v8.1.0) |
     | v8.0.1 | 2026 September 16 | [Details · Download](https://github.com/opencloud-eu/opencloud/releases/tag/v8.0.1) |
     | v8.0.0 | 2026 September 15 | [Details · Download](https://github.com/opencloud-eu/opencloud/releases/tag/v8.0.0) |