Increased memory depending on operating system limits
Liberty BASIC v5.0 is a new from the ground up implementation. It runs as an operating system process with access to the full 32-bit or 64-bit address space made available to it by the operating system. VisualWorks is capable of using this address space as allowed by the operating system.
Keep in mind that you may need to use the 64-bit version of Liberty BASIC to gain access to a 64-bit address space on 64-bit operating systems. Also, some 32-bit operating systems such as Windows may restrict the memory the 32-bit VM can allocate to less than 4GB.