The latest version is out!
It adds some significant new functionality with Calculated Fields for the main data - now if you would like to add an extra column which can be used to aggregates and grouping, you don't need to export, add the column and reimport. Instead, you can just create a calculated field, specifying the formula for the field with a script function.
The charts component has been updated to the latest version and work continues on making the file format mainly JSON which will ultimately allow a web-version to be created.
Reading of legacy files has been improved and now any files from versions 2.7 to 3.1 can be read.
A few rare bugs have been fixed and the script code formatter has been tweaked.