We just released SymmetricDS 3.1. It has quite a few important bug fixes as well as an enhanced dbimport tool. The dbimport tool now uses the core SymmetricDS dataloader so it is more flexible with more options. It also now loads SQL scripts via a streaming API versus loading the entire SQL script into memory.
3.1 also has a new useful new feature centered around a table called sym_load_filter. The new feature allows users to insert data filter expressions written in the bean shell language. Read more about the Data Loader Filter feature in the documentation.