esp-idf/tools/idf_py_actions/roms.json

{
  "esp32": [
    {
      "rev": 0,
      "build_date_str_addr": "0x3ff9ea80",
      "build_date_str": "Jun  8 2016"
    },
    {
      "rev": 3,
      "build_date_str_addr": "0x3ff9e986",
      "build_date_str": "Jul 29 2019"
    }
  ],
  "esp32s2": [
    {
      "rev": 0,
      "build_date_str_addr": "0x3ffaf34b",
      "build_date_str": "Oct 25 2019"
    }
  ],
  "esp32s3": [
    {
      "rev": 0,
      "build_date_str_addr": "0x3ff194ad",
      "build_date_str": "Mar  1 2021"
    }
  ],
  "esp32c2": [
    {
      "rev": 0,
      "build_date_str_addr": "0x3ff47874",
      "build_date_str": "Jan 27 2022"
    }
  ],
  "esp32c3": [
    {
      "rev": 0,
      "build_date_str_addr": "0x3ff1b878",
      "build_date_str": "Sep 18 2020"
    },
    {
      "rev": 3,
      "build_date_str_addr": "0x3ff1a374",
      "build_date_str": "Feb  7 2021"
    }
  ],
  "esp32c6": [
    {
      "rev": 0,
      "build_date_str_addr": "0x4004a798",
      "build_date_str": "Sep 19 2022"
    }
  ],
  "esp32h2": [
    {
      "rev": 0,
      "build_date_str_addr": "0x4001c7dc",
      "build_date_str": "Nov  1 2022"
    }
  ]
}