- ZX Spectrum 48K issue 4S video improvement: replace TR2 by ZTX313 (and TR1 by ZTX313 as well, for better compatibility with some TVs or converter boxes)
- ZX Spectrum 128K Investronica fixes and improvements
- ZX Spectrum +2A / +2B / +3 RGB cable ghosting fix
- ZX Spectrum 128K / +2 / +2A / +2B / +3 audio and video fixes and improvements (PDF)