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.
Upgrading from Lucid Phoenix
Keys created in Lucid Phoenix can be easily imported into version 4 Builder. Select the Phoenix deployed file (.lpxk) to import, via the key import option on the main menu. I.e. File…Import…Import Key.