krig-miner 1.0.5

Improved AMD RDNA 2 (RX 6400, RX 6500, RX 6600, RX 6700, RX 6750, RX 6800, RX 6950) performance by ~24%:

• RX 6700 XT: ~15.9 Th/s
• RX 6750 XT: ~17.8 TH/s