Sability: 0.2 series and final 0.4(and really nice if you know what to fix on 0.3.6)
Usability: 0.3 and 0.4
Performance: hard to say
Version
tibia protocol?) you can easy make 0.3.6 work with 8.55, 0.4 will be done for 8.55 or newer one and I'm not sure what version is supported by latest 0.2