Update v3 docs

Author: DavidMStraub

docs/install_setup/v3.md

@@ -1,16 +1,30 @@
 # Gramps 6.0 upgrade guide
 
-Gramps 6.0 was released on March 19, 2025.
+Gramps 6.0 was released on March 19, 2025. Since it uses a new family tree database schema compared to Gramps 5.2, additional steps are necessary when upgrading Gramps Web to be used with Gramps 6.0. This page describes the necessary steps.
 
-Gramps Web is **not yet compatible** with Gramps 6.0. If you are using Gramps Web and intend to [synchronize](../administration/sync.md) it with Gramps Desktop, please **do not upgrade to Gramps 6.0** until a new version of Gramps Web is released that is compatible with Gramps 6.0.
+!!! info
+    Last updated: May 5, 2025
 
-This page will be updated accordingly.
 
-A **beta version** of Gramps Web for Gramps 6.0 is now available for testing! See [this thread](https://gramps.discourse.group/t/gramps-web-gramps-6-0-beta-testers-wanted/7523) for more information.
+## Overview of the steps
 
 
-!!! info
-    Last updated: April 24, 2025
+This is an overview of the steps required to upgrade. 
+It also shows which steps are executed by the administrator of the Gramps Web server, the owner of the family tree, and whether it's needed only for users of the [sync addon](../administration/sync.md)
+
+Server administrator | Tree owner  | Action
+----|----|----
+  | ✓ | Back up your family tree
+&nbsp; | ✓ <sup>1</sup> |  [Synchronize Gramps Web with Gramps Desktop](../administration/sync.md)
+✓ |  | [Update Gramps Web](update.md)
+&nbsp; | ✓ | Update the tree's database schema
+&nbsp; | ✓ <sup>1</sup> | Update Gramps Desktop
+&nbsp; | ✓ <sup>1</sup> | Install the updated Sync Addon
+&nbsp; | ✓ | Back up your family tree
+&nbsp; | ✓ <sup>1</sup> | [Synchronize Gramps Web with Gramps Desktop](../administration/sync.md)
+
+
+<sup>1</sup> Only needed if you synchronize Gramps Web with Gramps Desktop.
 
 
 ## Overview of the release status
@@ -20,8 +34,38 @@ The following table gives an overview of when the components needed for Gramps W
 Component | Released
 ---|---
 Gramps 6.0.1 | 2025-04-18
-Gramps Web API 3.0.0 | &ndash;
-Gramps Web (Frontend) 25.5.? | &ndash;
-Gramps Web Sync Addon for Gramps 6.0 | &ndash;
-PostgreSQL Addon for Gramps 6.0 | &ndash;
+Gramps Web API 3.0.0 | 2025-05-04
+Gramps Web (Frontend) 25.5.0 | &ndash;
+Gramps Web Sync Addon 1.3.2 | 2025-04-30
 SharedPostgreSQL Addon 0.1.12 | 2025-03-20
+
+
+## Detailed steps
+
+This section provides more details about some of the individual steps above.
+
+### Back up your family tree
+
+In Gramps Web, go to the "Export" page and select "Gramps XML (family tree)" (the default option). Click "Generate" and wait until the download of the .gramps file starts.
+
+You can also create a backup in Gramps Desktop [in the usual way](https://www.gramps-project.org/wiki/index.php/How_to_make_a_backup).
+
+### Update the tree's database schema
+
+When you access Gramps Web for the first time after having upgraded it, you will be presented with a screen showing the message: 
+
+> The Family Tree you are trying to load is in a schema version not supported by this version of Gramps Web. Therefore you cannot load this Family Tree without upgrading its schema. This action cannot be undone.
+
+You can now click on the button "Upgrade Family Tree". It will show a progress bar and should not take more than a minute to complete. Don't worry, if you accidentally close your browser window, the conversion will continue in the background.
+
+!!! warning
+    If you use a non-standard setup *without* background task queue, the database upgrade might fail and your family tree might get corrupted. You can check (before updating Gramps Web) if you are using a background task queue by going to the "System Information" section in the settings and making sure it has "task queue: true".
+
+
+### Update Gramps Desktop
+
+Follow the Gramps Desktop installation instructions for your operating system.
+
+### Install the updated Sync Addon
+
+You can use the Plugin Manager in Gramps 6.0 to install the Gramps Web Sync addon. Search for Gramps Web Sync, click on install, and restart Gramps.