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 # Groovy Cheminformatics with the Chemistry Development Kit
 
-[Edition 2.9-0](https://egonw.github.io/cdkbook/)
+[Edition 2.9-1](https://egonw.github.io/cdkbook/)
 
 **Egon L. Willighagen** PhD<br />
 Long time CDK developer
diff --git a/index.i.md b/index.i.md
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@@ -30,7 +30,7 @@ Edition <version/>-<minor/>
 **Egon L. Willighagen** PhD<br />
 Long time CDK developer
 
-© E.L. Willighagen 2011-2023
+© E.L. Willighagen 2011-2024
 
 License: CC-BY-SA 4.0 International