docs: update changelog and values.yaml changelog for showcase projects

CHANGELOG.rst

@@ -1,5 +1,26 @@
 .. _changelog:
 
+
+0.41.0
+------
+
+Renku ``0.41.0`` allows the RenkuLab homepage to be configured to highlight chosen projects.
+
+Internal Changes
+~~~~~~~~~~~~~~~~~~~
+
+**🌟 New Features**
+
+- 🚀 **UI**: [Showcase] Admins can designate projects to be showcased on the home page, which will show them
+    in the showcase section of the home page. (`#2799 <https://github.com/SwissDataScienceCenter/renku-ui/pull/2799>`_).
+
+
+This is a breaking change to the values file and it requires minor edits to the following field:
+
+- ``ui.homepage`` removed the unused ``projects`` field and added the ``showcase`` field.
+
+For more details please refer to the explanation in ``helm-chart/values.yaml.changelog.md``.
+
 0.40.0
 ------
 

helm-chart/values.yaml.changelog.md

@@ -5,6 +5,24 @@ For changes that require manual steps other than changing values, please check o
 Please follow this convention when adding a new row
 * `<type: NEW|EDIT|DELETE> - *<resource name>*: <details>`
 
+## Upgrading to Renku 0.41.0
+
+The UI includes a feature that allows projects to be displayed in the _Showcase_ section of the RenkuLab home page.
+This is an improvement that has been planned for a while, and the _ui.homepage.projects_ field was introduced into the
+values file with the intention of being used to configure this. Support for that field was never actually implemented, and
+as part of the implementation of this feature, the configuration structure was changed somewhat.
+
+To clean up, please remove the following field:
+
+* DELETE - `ui.homepage.projects`
+
+To keep the RenkuLab homepage as before, ensure that the following field/value has been added:
+
+* NEW - `ui.homepage.showcase.enabled: false`
+
+Follow the _Homepage_ section of the how-to guide for admins to learn how to configure this feature if you wish to
+highlight showcase projects.
+
 ## Upgrading to Renku 0.39.0
 
 This is a big change to the Renku Helm chart. We have now combined all Renku components to be present