diff --git a/README.md b/README.md
index 603b115df24e62555d8c25159a9c05d4de79bb64..f1377f62c55dc704412e828f5a2f0a3b90e4326a 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,9 @@ contributing, and API reference.
 
 Omitted versions are plain bugfix releases with only minor changes and fixes.
 
+### v0.9.3
+- Encyclopedia with dedicated materials search index.
+
 ### v0.9.0
 - The encyclopedia runs on top of the new infrastructure. The GUIs are integrated via
   bi-lateral navigation between entries.