ESP32-S2 & ESP32-S3
All ESP32-S2 and ESP32-S3 boards that ship from Unexpected Maker come with a version of CircuitPython installed, including the UF2 firmware.
We try to ship boards with the latest released CircuitPython version, but sometimes you might receive a board with an earlier release.
You can always update your board by downloading the latest CircuitPython.
ESP32
All ESP32 boards that ship from Unexpected Maker come with a version of MicroPython installed.
You can update your board by downloading the latest MicroPython. Installation instructions are provided with the firmware download link.