EigenD 1.4.12-stable is the first stable release of the 1.4 series.
The 1.4 series is functionally equivalent to 1.3, but with full support for Windows. 1.3 supported the Pico, 1.4 supports the Alpha and Tau instruments.
1.4 also includes some optimisations which increase performance and reduce memory usage for large setups.
To use 1.4 on windows, you should upgrade the Windows Device driver to the latest version which you can find on the Resources page.