c

In file included from C:\Program Files (x86)\Arduino\libraries\MFRC522\src\MFRC522Extended.cpp:8:0:
C:\Program Files (x86)\Arduino\libraries\MFRC522\src\MFRC522Extended.h: In constructor 'MFRC522Extended::MFRC522Extended(uint8_t)':
C:\Program Files (x86)\Arduino\libraries\MFRC522\src\MFRC522Extended.h:81:44: warning: 'MFRC522::MFRC522(byte)' is deprecated: use MFRC522(byte chipSelectPin, byte resetPowerDownPin) [-Wdeprecated-declarations]
 MFRC522Extended(uint8_t rst) : MFRC522(rst) {};
                                           ^
In file included from C:\Program Files (x86)\Arduino\libraries\MFRC522\src\MFRC522Extended.h:10:0,
                from C:\Program Files (x86)\Arduino\libraries\MFRC522\src\MFRC522Extended.cpp:8:
C:\Program Files (x86)\Arduino\libraries\MFRC522\src\MFRC522.h:337:2: note: declared here
 MFRC522(byte resetPowerDownPin);
 ^~~~~~~
C:\Program Files (x86)\Arduino\libraries\MFRC522\src\MFRC522.cpp: In member function 'bool MFRC522::MIFARE_SetUid(byte*, byte, bool)':
C:\Program Files (x86)\Arduino\libraries\MFRC522\src\MFRC522.cpp:1853:39: warning: 'bool MFRC522::MIFARE_OpenUidBackdoor(bool)' is deprecated: will move to extra class in next version [-Wdeprecated-declarations]
 if (!MIFARE_OpenUidBackdoor(logErrors)) {
                                      ^
C:\Program Files (x86)\Arduino\libraries\MFRC522\src\MFRC522.cpp:1709:6: note: declared here
bool MFRC522::MIFARE_OpenUidBackdoor(bool logErrors) {
     ^~~~~~~
C:\Program Files (x86)\Arduino\libraries\MFRC522\src\MFRC522.cpp: In member function 'bool MFRC522::MIFARE_UnbrickUidSector(bool)':
C:\Program Files (x86)\Arduino\libraries\MFRC522\src\MFRC522.cpp:1882:34: warning: 'bool MFRC522::MIFARE_OpenUidBackdoor(bool)' is deprecated: will move to extra class in next version [-Wdeprecated-declarations]
 MIFARE_OpenUidBackdoor(logErrors);
                                 ^
C:\Program Files (x86)\Arduino\libraries\MFRC522\src\MFRC522.cpp:1709:6: note: declared here
bool MFRC522::MIFARE_OpenUidBackdoor(bool logErrors) {
     ^~~~~~~