Test 2023-06 for marketplace
diff --git a/plugins/org.eclipse.oomph.setup.installer/src/org/eclipse/oomph/setup/internal/installer/MarketplaceCatalogGenerator.java b/plugins/org.eclipse.oomph.setup.installer/src/org/eclipse/oomph/setup/internal/installer/MarketplaceCatalogGenerator.java
index 7af6bfc..6466598 100644
--- a/plugins/org.eclipse.oomph.setup.installer/src/org/eclipse/oomph/setup/internal/installer/MarketplaceCatalogGenerator.java
+++ b/plugins/org.eclipse.oomph.setup.installer/src/org/eclipse/oomph/setup/internal/installer/MarketplaceCatalogGenerator.java
@@ -339,6 +339,7 @@
     platformVersions.put("platform.version=4.25", "2022-09");
     platformVersions.put("platform.version=4.26", "2022-12");
     platformVersions.put("platform.version=4.27", "2023-03");
+    platformVersions.put("platform.version=4.28", "2023-06");
 
     Set<URI> nodeQueryURIs = new LinkedHashSet<URI>();
     {