ESP-IDF support period policy

[ESP_Angus]

Starting with ESP-IDF V3.3, all ESP-IDF releases include an announcement about the support period for the release.

As of today, our support period policy for ESP-IDF has been published here:
https://github.com/espressif/esp-idf/bl ... _POLICY.md

Today we've also announced the support periods for ESP-IDF versions released before V3.3. Please check the link above for full details.

Support for particular ESP-IDF versions is separate from hardware-level support for ESP32 and other SoCs, which is covered by the Espressif Longevity Commitment:
https://www.espressif.com/en/products/l ... commitment