We currently support nopCommerce version 2.65, 2.70, 2.80, 3.00, 3.10, 3.20, 3.30, 3.40, 3.50, 3.60, 3.70, 3.80, 3.90 and 4.00 for nopAccelerate plugin and nopCommerce version 4.10 for nopAccelerate Plus Pro & Search. If you’re looking for Solr extension for any other nopCommerce version, contact us with the details of version you’re having. We will love to add support for unsupported version for you.