PlatformIO has a very old version of the above SDK.
It is impossible to update it manually to what is on https://github.com/espressif/ESP8266_RTOS_SDK.git
This has been stable for a long time!
Why do they not provide a simple manual update option?
Update to ESP8266 RTOS SDK
maxgerhardt
#2
If the build system and file structure hasn’t changed you can update your local copy by going in your framework-esp8266-rtos-sdk folder (e.g. C:\Users\<user>\.platformio\packages\framework-esp8266-rtos-sdk) and update the files. However, the filestructure has changed so this won’t work. There’s already an issue for it: https://github.com/platformio/platform-espressif8266/issues/85
PIO is basically at 1.4.x (https://github.com/espressif/ESP8266_RTOS_SDK/tree/1.4.x) with the newest being 3.1.
srini1948
#3
So you are aware of this issue.
ESP8266 is so popular as an IOT device – I am surprised that it has not been updated.
I too thought I could manually update – but file structure has changed – new one is similar to ESP-IDF!
ivankravets
#4
Please file a feature request here https://github.com/platformio/platform-espressif8266/issues