I'm trying to configure Solr for WordPress plugin with Solr 4. It seems that is necessary some changes. I did the following:
1. solr.EnglishPorterFilterFactory is deprecated. I replaced it with "SnowballPorterFilterFactory with language="English".
2. Disabled transaction log in solrconfig.xml file:
The connection to Solr is ok but it continues reporting an error with "commit" function. It seems it using a deprecated option. Do you know the exact changes in the schema file to support Solr version 4?