I have Solr 4.10 and I have collection on it with `solorconfig.xml` has the value for `<luceneMatchVersion>` as follows:

```
<luceneMatchVersion>4.7</luceneMatchVersion>

```

Is this correct? I saw other examples that has values such as `LUCENE_35` What I need to know also, how could I express `LUCENE_xx` from my current Solr version?