Can confirm that 5.2c is working great with my RX 570  4Gb cards

Windows 10
Adrenalin 2019-Edition-18.12.3-Dec19 driver

2 x Sapphire Pulse Rx 570 4Gb cards mining ETH at 1100/2000 core/mem

hashrate now 29.9MH/s
hashrate before the DAG limitation: 30.3MH/s