SymmetricDS 3.3.4 was released with 4 bug fixes. A fix was made to the sync keys feature that was affecting SQL-Server. Sync keys lets you specify the columns to use for identifying a unique row. On SQL-Server, updates to sync key columns were not being captured because of the way its triggers work at the statement level. The sync keys code was in the SymmetricDS engine, and it was fixed to also be inside the triggers. The SQLite dialect had two fixes around automatically creating tables: A transaction lock from multiple threads was avoided, and the default value of current_timestamp on timestamp columns was fixed. Also see the Changelog.