What files or folders have been replaced in Khalid's new map update?

Of course not. You can delete the regional data in the NaviOne\POI_DATA folder as needed. The specific correspondence is as follows:

POI0 1 RDCRS0 1 Beijing POI02 RDCRS02 Tianjin POI03 RDCRS03 Shanghai POI04 RDCRS04 Chongqing

POI 13 RDCRS 13 Hebei POI 14 RDCRS 14 Shanxi poi15 inner Mongolia POI2 1 RDCRS2 1 Liaoning.

POI22 RDCRS22 Jilin POI23 RDCRS23 Heilongjiang POI32 RDCRS32 Jiangsu POI33 RDCRS33 Zhejiang

POI34 RDCRS34 Anhui POI35 RDCRS35 Fujian POI36 RDCRS36 Jiangxi POI37 RDCRS37 Shandong

Poi 4 1 rdcr 4 1 Henan POI42 RDCRS42 Hubei POI43 RDCRS43 Hunan POI44 RDCRS44 Guangdong.

POI45 RDCRS45 Guangxi POI46 RDCRS46 Hainan POI5 1 RDCRS5 1 Sichuan POI52 RDCRS52 Guizhou.

POI53 RDCRS53 Yunnan POI54 RDCRS54 Tibet POI6 1 RDCRS6 1 Shaanxi POI62 RDCRS62 Gansu

POI63 RDCRS63 Qinghai POI64 RDCRS64 Ningxia POI65 RDCRS65 Xinjiang POI85 RDCRS85 Hong Kong/Macau