I won't go into the full detail - I wouldn't want to steal anyone's thunder. But here's a list of the major "stuff" that's gone on to bring this emulator up to version 5.0:
- Spectrum +3 emulation - full implementation with 2 drives
- Interface 1 enhancements - includes RS232 emulation via your PC's com-port
- Cassette Recorder enhancements
- New "Enable writes to Multiface ROM" option
- Added a "Generate NMI" option