Version 4.2

New Features

• Added a readable message when a device is not detected on a given port (#751)
• image_info: Print flash settings and extended header fields with --version 2 argument
• Added support for 26 MHz XTAL on ESP32-C2
• Expanded minimum revision field to accept higher chip revisions

espefuse.py

• Added XTS_AES_256 key_purpose on ESP32-S3-beta2
• burn_efuse: Improved error messages when a new data value is incorrect (#760)
• get_pkg_version: Fixed on ESP32-C2 (#759)
• Added major and minor wafer version eFuses

Bug Fixes

• load_extended_header: Load the minimum chip revision min_rev field
• Fixed flasher stub on ESP32-H2

espefuse.py

• Removed XTS_AES_256 key purposes on ESP32-C3
• Fixed location of FAIL_BIT and NUM_BITS on ESP32-C3
• Added a warning to specify the --port/-p argument if connection fails (#744)

espsecure.py

• _microecc_format: Pad zeroes to curve length

Miscellaneous Changes

• Clarified USB-OTG-related functions (#756, #757)
• Stub codes are now included as JSON files with metadata for each target

Thanks to @befeleme and others for contributing to this release!