docs/release_notes/4.3/grease_pencil.md

@@ -123,10 +123,7 @@ Some features present in 4.2 have been removed.
 This is mostly due to the changes in the architecture and the difficulty in maintainability. 
 
 ### Screen Space Stroke Thickness
-Strokes are now always in "World Space" thickness mode.
+Strokes are now always in "World Space" thickness mode. While the "Screen Space" option is no longer availible, the same effect can be recreated using a geometry nodes modifier. See the **[migration process](grease_pencil_migration.md/#screen-space-stroke-thickness)** for more information.
-
-Note that it is possible to recreate the "Screen Space" thickness effect using a geometry nodes
-modifier.
 
 ### Interpolation Tool Selection Order
 The selection order (in edit mode), that was used to specify pairs of strokes to interpolate, has

docs/release_notes/4.3/grease_pencil_migration.md

@@ -3,6 +3,14 @@
 With Grease Pencil completely rewritten in 4.3, it is expected that some features work differently.
 This page explains the migration process for users as well as add-on developers.
 
+## Screen Space Stroke Thickness
+
+In Blender 4.3,the `Screen Space` stroke thickness option has been removed from the Grease Pencil object-data properties. In order to get the same effect, a geometry nodes modifier can be used to scale the points procedurally to match a specific thickness in pixels in the render.
+
+A basic setup can be downloaded [here](files/screen-space-thickness-nodegroup.blend).
+
+Go to `File`>`Append` navigate to the file and append the "Screen Space Thickness" node group into your file, then add a Geometry Nodes modifier to the Grease Pencil object and select the "Screen Space Thickness" group from the node group selector. Enter the `Camera Data` information of the camera to be used. Optionally, it's also possible to add drivers to these fields to make sure they match the settings of the scene and camera. 
+
 ## Python API
 
 Add-ons written using the Grease Pencil python API before 4.3