Version 3.5.3rc1 breaks the build

I have a simple script that use to compile in the previous version but breaks since the update with the following compilation errors:

In file included from C:/Repositories/Workshop/ESPSignalTest/src/ESPSignalTest.ino:3:0:
C:\users\developer.platformio\packages\framework-arduinoespressif8266\libraries\ESP8266WiFi\src/ESP8266WiFi.h:62:36: error: no members matching ‘ESP8266WiFiSTAClass::RSSI’ in 'class ESP8266WiFiSTAClass’
using ESP8266WiFiSTAClass::RSSI;
^
In file included from C:\users\developer.platformio\packages\framework-arduinoespressif8266\libraries\ESP8266WiFi\src\ESP8266WiFi.cpp:25:0:
C:\users\developer.platformio\packages\framework-arduinoespressif8266\libraries\ESP8266WiFi\src\ESP8266WiFi.h:62:36: error: no members matching ‘ESP8266WiFiSTAClass::RSSI’ in 'class ESP8266WiFiSTAClass’
using ESP8266WiFiSTAClass::RSSI;
^
In file included from C:\users\developer.platformio\packages\framework-arduinoespressif8266\libraries\ESP8266WiFi\src\ESP8266WiFiGeneric.cpp:27:0:
C:\users\developer.platformio\packages\framework-arduinoespressif8266\libraries\ESP8266WiFi\src\ESP8266WiFi.h:62:36: error: no members matching ‘ESP8266WiFiSTAClass::RSSI’ in 'class ESP8266WiFiSTAClass’
using ESP8266WiFiSTAClass::RSSI;
^
*** [.pioenvs\nodemcuv2\src\ESPSignalTest.ino.cpp.o] Error 1
In file included from C:\users\developer.platformio\packages\framework-arduinoespressif8266\libraries\ESP8266WiFi\src\ESP8266WiFiAP.cpp:25:0:
C:\users\developer.platformio\packages\framework-arduinoespressif8266\libraries\ESP8266WiFi\src\ESP8266WiFi.h:62:36: error: no members matching ‘ESP8266WiFiSTAClass::RSSI’ in 'class ESP8266WiFiSTAClass’
using ESP8266WiFiSTAClass::RSSI;
^
*** [.pioenvs\nodemcuv2\libf14\ESP8266WiFi\ESP8266WiFi.cpp.o] Error 1
*** [.pioenvs\nodemcuv2\libf14\ESP8266WiFi\ESP8266WiFiAP.cpp.o] Error 1
*** [.pioenvs\nodemcuv2\libf14\ESP8266WiFi\ESP8266WiFiGeneric.cpp.o] Error 1

The code compiles in Arduino IDE 1.8.5 without any issues.

The ini file:

[env:nodemcuv2]
platform = espressif8266
board = nodemcuv2
framework = arduino

Can you reduce the error to the simplest code possible and post it?