Version End of Life. 31 July 2020
Release 5.3.1 is a bug fix release that adds support for the GEOMETRY data type in MySQL 5.7 and above, and a number of bug fixes.
This change is not backwards compatible; when upgrading, you should upgrade slaves first and then the master to ensure compatibility. Once you have extracted data with the GEOMETRY type into THL, the THL will no longer be compatible with any version of the replicator that does not support the GEOMETRY datatype.