JSON-stat version 1 will introduce some major (non-backward compatible) changes. This release is created to make it easy to access the latest zero version of the JSON-stat Javascript Toolkit (v.0.13.13) and companion tools (the JSON-stat Javascript Utilities Suite v.2.5.5, the JSON-stat Explorer v.0.4.3 and the experimental JSON-stat for Eurostat v.0.1.9).