The main news about this unstable version is the possibility to save automatically the open drawings as well as the workspace properties.
With it you cannot loose anymore the work done on Archimedes. The open drawing on close time are persisted so that they can be reopen on a new software execution.
Besides the drawings, properties like the mouse size and the other ones are also saved to reduce the user overhead with the software.
Next week will bring the new stable version that should bring a couple more features. Stay tunned!