Upgrading from Lucid v3.x
Keys created in v3.x are compatible with version 4 Builder.
These older file formats can be opened directly in Lucid v4 without having first to perform a conversion process.
Warning
While it is possible to open a v4 file in older versions of Lucid this should not be done. New features and changes to the v4 file format will be lost if the key is saved via the older edition.