Please note that SQL Workbench/J has no relation to the product MySQL WorkbenchLink Arrow which is maintained and owned by Oracle.
If you are looking for MySQL Workbench support please contact Oracle.

SQL Workbench/J is a free, DBMS-independent, cross-platform SQL query tool. It is written in Java and should run on any operating system that provides a Java Runtime Environment.

Its main focus is on running SQL scripts (either interactively or as a batch) and export/import features. Graphical query building or more advanced DBA tasks are not the focus and are not planned

Current stable version: Build 121 (2016-07-31)
Current development build: 121.2 ( 2016-10-17)