- update to 4.5.1
* Bug Fixes
- ESP32-S3: Temporarily disabled increasing CPU frequency in the stub flasher (#832, #848, #842).
- Fixed error messages when esptool is used with an unknown chip.
- esp_rfc2217_server: Updated reset sequences.
- esp_rfc2217_server: Registered as a script (#846).
- pyinstaller: Fixed glibc dependency on gnu/linux (#843).
* Miscellaneous Changes
- Added target tests for ESP32-H2.
- Reduced size of test images.
- Added a custom host_test marker for the test suite to allow running tests without real hardware (#838).

- version 4.5
* New Features
- Configuration file: Added the option to configure internal variables
(such as timeouts and delays) and to implement a custom reset sequence (see the related documentation).
- Bootloader reset: Added a new reset strategy to make resetting into the
download mode more reliable on MacOS and Linux systems (#712).
- ESP32-S3: Added support for >32MB octal flash chips (#795, #745).
- ESP32-H2: Added full esptool and flasher stub support.
- ESP32-C6: Added full flasher stub support.
- flash_id: Print the flash memory chip type (quad vs. octal) if available (#730).
- elf2image: Added --pad-to-size option to specify a size to which
the generated binary image must be aligned.
- write_flash: Added a security check to prevent bricking the device
when flash encryption is active.
- Optimized to reduce the number of steps when a chip is being interrogated.
* espsecure.py
- Added an external HSM signing interface.
- Added support for pre-calculated signatures.
- Added PKCS#8 identifier support (#819).
* Bug Fixes
- USB-Serial/JTAG: Fixed randomly failing transfers when writing/reading large binaries.
- ESP32-S3: Fixed crashing stub flasher when using in USB-Serial/JTAG mode (#808)
- ESP32: Recalculate the crystal clock to compensate for the chips baud rate setting
as a workaround to avoid ESP32 CK_8M frequency drift.
- ESP32-S3: Fixed v0.0 chip being detected as vX.8.
- StopIteration: Fixed several possible errors when stub flasher is being uploaded
and added better error messages for other cases (#824).
- Fixed chip autodetection and operations in the secure download mode on ESP32-S2 and S3 (#813).
- write_flash: Fixed the --erase-all option corrupting flash (#805).
- write_flash: Fixed security checks when min_rev and max_rev_full are specified in the image.
- Fixed compatibility with bitstring>=4 package.
- Fixed compatibility with reedsolo when using Python 3.10 and Cython (#711).
* espefuse.py
- The serial port now gets closed when espefuse fails (#803).
* Miscellaneous Changes
- Refactored to make adding new targets easier, reduce code repetition,
and comply with the Black 23.1 style.
- Added target tests for all of the newly supported chips.
- Updated the toolchains for stub flasher builds.

-version 4.4
* New Features
- flasher_stub: Increased read/write speeds over USB-JTAG/Serial or USB-OTG modes, making some operations nearly twice as fast.
- Added detection for guru meditation errors induced by the flasher stub or ROM bootloader.
- Added a readable error message for serial-related failures, giving more information about possible HW issues.
- espsecure.py: Improved AES-XTS encryption speed. (#783)
* Bug Fixes
- ESP32-S3 v0.0: Fixed chip revision detection.
- bitstring: Added a workaround for breaking changes of bitstring==4
- get_default_connected_device: Fixed to close unused serial ports.
- flash_freq: Fall back to a chip-specific default flash frequency when no flash_freq arg is specified.
- ESP32-C6: Fixed chip type detection and SPI flash communication.