A new version 1.4 of **Grew** will be available in the upcoming weeks with a few changes in the syntax.
For some technical reason, the [**Grew-match**](http://match.grew.fr) online tool is already based on the upcoming version and so already uses the new syntax.
The `dev` version of the **Grew** API for **Arborator-Grew** also uses the new syntax.
## Clustering on the label of an edge
With the pattern:
```grew
pattern { e: M -> N; N [upos=ADJ]}
```
if you want to cluster the result on the label of the edge `e`, the old syntax was `e`, the new one is `e.label` ([Try it!](http://match.grew.fr/?corpus=SUD_French-GSD@latest&clustering=e.label&pattern=pattern%20%7B%20N%20-%3E%20M;N%20[upos=ADJ]%20%7D)).