hi the difference is spoken about earliwr in this or the upgrading mezzo thread.
newer fprk qr mpre secure but older ok. need more tools to remove wheel on older version. I bought the whole fork and qr and muddguard from mezzo to upgrade my older black bike For 100 pounds . Newer seat post clamp 12 pounds. brakes no real change but fit teflon coated innera and better pads Are well worth ffitting at the rear.
not alot else is different.

Don't let it put you off an older bike if the price right. not sure if mezzo spares still obtainable.