Note that free support and maintenance for the version 2 of the viewer will be discontinued on June 1st, 2024. We encourage you to migrate your application to version 3. Here is a migration guide: Viewer 2 - Migration Guide
We are about to send an official notice about viewer 2. The viewer will never be phased out, your models will keep working as always. However, it will not receive any more updates in case bugs and requests are reported by users. Free support via the forum will also be discontinued.