Hi.
I'm using esp32-dev board 4Mb Flash.
I have a system developed with Arduino IDE 1.8.5 and ESP32 core 1.0.6.
This system print on loop() - ESP.getFreeHeap() each 5 seconds, and show me ~302K free.
I exchange 1.0.6 to 2.0.0rc1 and I only compiled again and got ~265K free, difference of 37Kbytes.
What's can happening?

Thanks!