Results of checking the release against common anti-virus SW

✨ New Features

write-flash: Add fast reflashing option to update changed flash sectors only or skip already flashed content (documentation) (Radim Karniš - 5aad298)
stub flasher: Make the esp-flasher-stub stub flasher available to use (Radim Karniš - cf9cdb7)
esptool: Add ESP32-E22 support (Radim Karniš - ce838cd)
esptool: Add ESP32-S31 support (C.S.M - 3077627)
esptool: Update chip description for ESP32-C2/ESP8684H (Konstantin Kondrashov - c6f1839)
python: Support Python v3.14 (Radim Karniš - 8d201c7)
write-flash: Enable compress and encryption together (Jaroslav Safka - 5d747d8)
write-flash: Allow encrypted writes using key from the Key Manager (harshal.patil - aa1b04a)
write-flash: Apply compression only if it reduces the file size (Jaroslav Safka - 188028d)
SPI flash: Add SPI flash reset when detecting chip (C.S.M - 1b57c61)
espefuse: Add eFuse definitions for ESP32-H2 revision 1.2 (Konstantin Kondrashov - 08f4cbb)
espefuse: Add ESP32-E22 support (Radim Karniš - a47e86f)
espefuse: Enable ECDSA keys burning support for ESP32-H4 (nilesh.kale - a02d858)
espefuse: Set postpone flag by default (Konstantin Kondrashov - 23e5ec1)
espefuse: Add eFuse flash fields for ESP32-C2/ESP8684H (Konstantin Kondrashov - b3d4e15)
espsecure: Add --skip-padding flag to sign-data and verify-signature API (hrushikesh.bhosale - ce5a4ac)
ESP32-H4: Add stub flasher support (Radim Karniš - cf9cdb7)
ESP32-C5: Add ECO3 stub flasher support (Radim Karniš - fc0c984)
ESP32-P4: Add ECO6 stub flasher support (Radim Karniš - 9393921)
ESP32-P4: Power on SPI flash chip during the connection process on ECO6 (Radim Karniš - 21c802f)
HSM signing: Use primitive HSM signing mechanisms (harshal.patil - a1a4e95)
CLI: Add autocomplete for port and baud rate (Peter Dragun - 8363cae)
port detection: Improve ports sorting when autodetection is used (Jaroslav Burian - ec84fba)

🐛 Bug Fixes

change_baud: Disable changing baud rate on ESP32-C2 and ESP32-C5 in Secure Download Mode (Radim Karniš - 9286189)
USB mode detection: Fix USB mode detection on ESP32-C5 and ESP32-C61 (Radim Karniš - 81bdb76)
ESP32-H4: Fix memory map and disable unsupported watchdog reset (Radim Karniš - 7728772)
ESP32-C6: Fix ESP32-C6FH8 package detection (Roland Dobai - d7f1adf)
ESP32-C3: Fix USB->Serial detection on rev1.1 (Jaroslav Safka - 8bc2c50)
logging: Require custom logger to implement the correct interface (Radim Karniš - deca775)
logging: Fix warning log for ESP32-S31 (Roland Dobai - 5920030)
logging: Remove warning keyword from error outputs (Roland Dobai - 30808a4)
logging: Always flush output in stage mode (Peter Dragun - a5c9090)
write-flash: Print correct number of bytes and flash offsets when --no-stub (Radim Karniš - e78ab87)
write-flash: Allow --force and --erase-all to be used together (Radim Karniš - c26e58e)
write-flash: Fix ESP32-C2 FE key validation (Konstantin Kondrashov - c02d53f)
write-flash: Fix ESP32 FE key validation (Konstantin Kondrashov - 4f1d212)
write-flash: Allow bootloader reflash in secure-boot-v2 scheme (Mahavir Jain - 9d0bdd5)
erase-region: Allow erasing past 4MB in ROM and SDM mode (Radim Karniš - 06794d7)
image cmds: Print the name of chip in full expanded form (Radim Karniš - 6b6e0f4)
espefuse: Ensure port is closed when creating commands fails (Peter Dragun - 9646a80)
espefuse: Fix decoding error in ESP32-C5 summary (Peter Dragun - e49c69a)
espefuse: Fix calibration eFuses for ESP32-P4 ECO5 (Konstantin Kondrashov - a1ca6c9)
espefuse: Fix ECDSA key purposes for ESP32-P4 (Konstantin Kondrashov - ae23ab2)
espsecure: Fix the keyfile arg of the sign-data command by making it optional (harshal.patil - ee35dda)
espsecure: Allow verifying multiple appended ECDSA signatures (harshal.patil - 9a207b1)
windows: Limit rich_click version to <1.9.0 (Peter Dragun - fa97591)

Results of checking the release against common anti-virus SW

The failures are probably false positives. You can mark esptool as safe in your anti-virus SW, or install esptool from source.

✨ New Features

ESP32-P4: Add ECO6 support (Radim Karniš - 1fe1d8f)
ESP32-P4: Power on SPI flash chip during the connection process on ECO6 (Radim Karniš - b8dd0a3)
ESP32-C5: Add ECO3 support (Radim Karniš - 1fe1d8f)
ESP32-C5: Add chip features (Peter Dragun - 9d91efc)

🐛 Bug Fixes

change_baud: Disable changing baud rate on ESP32-C2 and ESP32-C5 in Secure Download Mode (Radim Karniš - 0e3adae)
USB mode detection: Fix USB mode detection on ESP32-C5 and ESP32-C61 (Radim Karniš - 667861b)
ESP32-C3: Fix USB->Serial detection on rev1.1 (Jaroslav Safka - 3660ff6)
ESP32-C6: Fix ESP32-C6FH8 package detection (Roland Dobai - 70733c1)
image-info: Sanitize app and bootloader info of null bytes (Radim Karniš - 8fccdf8)
espefuse: Fix decoding error in ESP32-C5 summary (Peter Dragun - b3134ed)
espefuse: Fix calibration eFuses for ESP32-P4 ECO5 (Konstantin Kondrashov - ab8ecae)
espefuse: Fix ECDSA key purposes for ESP32-P4 (Konstantin Kondrashov - c75a3de)
espsecure: Allow verifying multiple appended ECDSA signatures (Harshal Patil - 2856164)

Results of checking the release against common anti-virus SW

The failures are probably false positives. You can mark esptool as safe in your anti-virus SW, or install esptool from source.

New Features

ESP32-P4: Add ECO5 support (Jaroslav Safka - 2ea1fca, Konstantin Kondrashov - a2f4e66)
ESP32-C5: Add support for >16 MB flash sizes (Roland Dobai - 0ac477a)
espefuse: Add custom key purposes for ESP32-C6/C5/P4 (Konstantin Kondrashov - 3996e21)
espefuse: Support burning ECDSA_384 keys (Konstantin Kondrashov - cc61acf)
espefuse: Clean up limitation for BLOCK9 usage (Konstantin Kondrashov - dc220df)
espefuse: Add support for burning 512-bit keys on ESP32-C5 (Konstantin Kondrashov - 599634a)

Bug Fixes

Use correct error codes for ROM errors (Jaroslav Burian - 529ff4e)
espefuse: Fix re-connection issue in check-error via USB-Serial/JTAG (Konstantin Kondrashov - af6ff30)
write_flash: Make write flash memory-layout-independent (Jaroslav Safka - aee68fa)
elf2image: Handle ELF files with zero program header counts (Tormod Volden - 2e87882)
espefuse: Disable programming and usage of XTS-AES-256 eFuse key for ESP32-C5 (harshal.patil - 13121d4)
ESP32-C5: Erase during flashing above 16MB (Jaroslav Burian - a977cdf)
espsecure: Add support for python-pkcs11 9.0+ (Peter Dragun - 223456f)

Results of checking the release against common anti-virus SW

The failures are probably false positives. You can mark esptool as safe in your anti-virus SW, or install esptool from source.

@tormodvolden

✨ New Features

ESP32-P4: Add ECO5 support (Jaroslav Safka - 6c10050, Konstantin Kondrashov - 40f103c)
ESP32-C5: Add support for >16 MB flash sizes (Roland Dobai - 8e2b94e)
espefuse: Add custom key purposes for ESP32-C6/C5/P4 (Konstantin Kondrashov - c6ce0bc)
espefuse: Support burning ECDSA_384 keys (Konstantin Kondrashov - 4a9a3d8)
espefuse: Clean up limitation for BLOCK9 usage (Konstantin Kondrashov - d63e3db)
espefuse: Add support for burning 512-bit keys on ESP32-C5 (Konstantin Kondrashov - 468de5c)

🐛 Bug Fixes

Use correct error codes for ROM errors (Jaroslav Burian - da4346b)
ESP32-C5: Erase during flashing above 16MB (Jaroslav Burian - d65a24e)
write_flash: Make write flash memory-layout-independent (Jaroslav Safka - d19413c)
elf2image: Handle ELF files with zero program header counts (Tormod Volden - d27ce37)
elf2image: Fix --pad-to-size argument parsing (Peter Dragun - 66a1377)
CLI: Handle deprecated options with "=" before value (Peter Dragun - f05fb62)
Prevent exiting immediately when being called programmatically (Fu Hanxi - d8ae230)
espefuse: Update CLI to support rich-click 1.9.0 (Peter Dragun - 2ae5535)
espefuse: Fix re-connection issue in check-error via USB-Serial/JTAG (Konstantin Kondrashov - a160468)
espefuse: Disable programming and usage of XTS-AES-256 eFuse key for ESP32-C5 (harshal.patil - c85a93d)
espsecure: Fix printing key digest in signature info (Radim Karniš - 7e53596)
espsecure: Extract public key version 1 in RAW format (Peter Dragun - 6cfced8)
espsecure: Allow signing multiple files in one go (Peter Dragun - 0177d61)
espsecure: Add support for python-pkcs11 9.0+ (Peter Dragun - 3ea646f)

Thanks to @tormodvolden, and others for contributing to this release!

Results of checking the release against common anti-virus SW

The failures are probably false positives. You can mark esptool as safe in your anti-virus SW, or install esptool from source.

🐛 Bug Fixes

Fix compatibility with Click 8.2.0+ (Peter Dragun - 524825e)
Fix --port-filter argument parsing (Peter Dragun - b53a16c)
Fix buffering issues with CP2102 converter causing connection failures (Jaroslav Burian - 5338ea0)
ESP32-S3: Fix stub flasher execution with active Secure Boot (Radim Karniš - 7ba285b)
ESP32-C3: Disable flasher stub when Secure Boot is active (Radim Karniš - 1f1ea9a)
espefuse: Handle error in burn-efuse command when no arguments are provided (Peter Dragun - 0f32306)

Results of checking the release against common anti-virus SW

The failures are probably false positives. You can mark esptool as safe in your anti-virus SW, or install esptool from source.

🐛 Bug Fixes

Fix buffering issues with CP2102 converter causing connection failures (Jaroslav Burian - 72f6b0d)
ESP32-S3: Fix stub flasher execution with active Secure Boot (Radim Karniš - a846531)
ESP32-C3: Disable flasher stub when Secure Boot is active (Radim Karniš - a03158c)
elf2image: Fix support for ESP32-H4 MMU page size configuration (Jaroslav Burian - 5ae594b)
elf2image: Validate ELF section types and addresses before processing (Jaroslav Burian - e67ec01)
elf2image: Handle PREINIT_ARRAY section type in ESP32-P4 ELF files properly (Jaroslav Burian - f5404fa)
ESP32-S2: Enabled auto-detection in secure download mode (Jaroslav Burian - 624f1b6)
ESP32-P4: Enabled ECO5 chip detection (Jaroslav Burian - e4b9675)

Results of checking the release against common anti-virus SW

The failures are probably false positives. You can mark esptool as safe in your anti-virus SW, or install esptool from source.

🐛 Bug Fixes

elf2image: Validate ELF section types and addresses before processing (Jaroslav Burian - 97a1546)
elf2image: Handle PREINIT_ARRAY section type in ESP32-P4 ELF files properly (Jaroslav Burian - ec84a75)
elf2image: Fix incorrect logger call (Marek Matej - 637f0e6)

Results of checking the release against common anti-virus SW

The failures are probably false positives. You can mark esptool as safe in your anti-virus SW, or install esptool from source.

@stevanStevic

In this major release, esptool was refactored, and some breaking changes were introduced. See the v5 Migration Guide article in the documentation for a detailed list of changes and guidance on adapting existing workflows and scripts to ensure compatibility when updating from v4.*.

See the esptool: Updates about the v5 major release developer portal article for an overview of some of the new features and changes.

🚨 Breaking changes

Public Python API redesign: Reworked the public API to work as a Python module. Command functions accept explicit parameters (no args object) (Radim Karniš - ba36933) (Peter Dragun - d7da0f8)
CLI overhaul: esptool, espefuse, espsecure now use click for CLI argument parsing and rich-click for nice CLI rendering (Peter Dragun - d40fefa)
All commands / options names have replaced underscores (_) with dashes (-) (e.g., flash_id -> flash-id). Old names will print deprecation warnings (Peter Dragun - 3cecd6d)
Removed .py suffix from scripts (e.g., esptool.py flash-id -> esptool flash-id). Using .py will print deprecation warnings (Peter Dragun - 635cde1)
Centralised logging: All tools' output now goes through the EsptoolLogger class, allowing easy redirection (Radim Karniš - 1ce02db)
image-info: Deprecated the --version 1 output format (Radim Karniš - 3f625c3)
errors: Errors are now printed to STDERR, added KeyboardInterrupt handling (Radim Karniš - 0864e17)
make-image: Removed the ESP8266 make-image command in favor of other workflows (Radim Karniš - 955a7c8)
espefuse: Removed execute-scripts in favor of the new public API (Peter Dragun - ff72b26)
Removed support for beta chip targets: ESP32-C5(beta3), ESP32-C6(beta), ESP32-H2(beta1/2), ESP32-S3(beta2) are no longer supported (Radim Karniš - 8f1c206)
Deprecated support for Python 3.7, 3.8, and 3.9 (Peter Dragun - 19f1bee)
write-flash: Removed the superfluous --verify option (Radim Karniš - dbf3d1c)

✨ New Features

logging: Added collapsible output stages and ASCII progress bars (Radim Karniš - f3cf107)
trace: Updated --trace with more info and more readable formatting (Radim Karniš - 0beee77)
verbosity: Allowed setting silent or verbose output levels (Radim Karniš - 90e3770)
cmds: Allowed commands to output bytes, as well as write to a file (Radim Karniš - 0153b79)
cmds: Allowed inputs of commands to be file paths, bytes, or file-like objects (Radim Karniš - 46a9e31)
flash_attach: Encapsulated logic for flash attaching and configuration (Radim Karniš - 6e959ef)
espefuse: Added eFuse calculation fields for ESP32-C5 (Konstantin Kondrashov - 9104038)
espefuse: Added 3-bit field for wafer major version in ESP32-P4 (Konstantin Kondrashov - c102510)
espsecure: Dropped ecdsa module, using cryptography instead (Radim Karniš - e132f6f)
targets: Updated chip features lists with more info (Radim Karniš - 3c776aa)
Added support for Adesto flash chips (Jaroslav Burian - 0b56f85)
Added support for k, M suffix for flash sizes (Peter Dragun - 6f0d779)

🐛 Bug Fixes

write-flash: Detect more cases of unresponsive flash, fixed failing flash_size check (Radim Karniš - e6bfc3b)
autodetection: Removed the Unsupported detection protocol stage (Radim Karniš - 05553a4)
elf2image: Fixed RAM app generation when SHA256 offset is not specified (Jaroslav Burian - 6f8ff39)
image-info: Sanitized app and bootloader info of null bytes (Radim Karniš - 8016455)
logging: Avoid crashes when flushing if sys.stdout is not available (Radim Karniš - 5176b67)
ESP32-S2: Enabled auto-detection in secure download mode (Jaroslav Burian - c2f5d21)
ESP32-P4: Enabled ECO5 chip detection (Jaroslav Burian - 0b3460f)
elf2image: Multiple fixes from 3rd party frameworks (Sylvio Alves - cbd4e9b)
read-flash: Added timeout to to avoid infinite loops (Peter Dragun - f26a7bb)
espefuse: Close data files after reading the data (Stevan Stevic - 807d02b)

Thanks to @stevanStevic, @Jason2866, and others for contributing to this release!

Results of checking the release against common anti-virus SW

The failures are probably false positives. You can mark esptool as safe in your anti-virus SW, or install esptool from source.

@chromalock

New Features

ESP32-H21: Added full support
ESP32-H4: Added full support
ESP32-P4: Enabled USB-OTG in flasher stub
ESP32-P4: Added support for >16MB flash sizes in flasher stub
ESP32-S3: Added support for >16MB encrypted writes in flasher stub
chip_type_verification: Enabled in secure download mode, stopped using magic numbers
watchdog_reset: Added a new watchdog_reset option working even in USB modes
erase_region: Enabled erasing in ROM bootloader and secure download mode
Added information about the currently used USB mode during chip connection
image_info: Extended the app description info with new segments
esp_rfc2217: Improved the logger message format
Added the option to filter connections based on the serial number
hard_reset: Added support for custom hard reset sequence configuration
Added support for Python 3.13
espefuse: Added support for eFuses for ESP32-C5 ECO2
espefuse: Added support for eFuses for ESP32-C61 ECO3
espsecure: Improved error messages in encrypt_flash_data() and decrypt_flash_data()
espefuse: Added support for different eFuse table versions for ESP32-H2
espefuse: Added 3 bit for PSRAM_CAP efuse field
espefuse: Added API for getting block and wafer versions
espefuse: Added ADC calibration data for ESP32-C61, ESP32-C5, and ESP32-P4

Bug Fixes

stub_flasher: Fixed failing ESP32-C5 ECO2 flash writes
stub_flasher: Fixed USB-Serial/JTAG mode on ESP32-C5 ECO2 and ESP32-C61 ECO3
write_flash: Detect more cases of unresponsive flash, fixed failing flash_size check
write_flash: Skipped flash_size checks if we can't read flash size
espefuse: Fixed output messages in set_flash_voltage
espefuse: Corrected JTAG_SEL_ENABLE to GPIO34 strapping pin on ESP32-P4
ESP32-C5: Fixed bootloader address
ESP32-H21: Fixed eFuse base address
IntelHex: Do not use padding for merged IntelHex files
elf2image: Fixed for RAM app when SHA256 offset is not specified
elf2image: Fixed support for --flash-mmu-page-config for all chips
elf2image: Try to correct MMU page size if not specified, print correctly in error messages
tests: Expect the correct module name for Python 3.14 argparse
Fixed closing port when connection fails
image_info: Hidden missing app info based on IDF version
save_segment: Added segment length check, the same as the bootloader does
image_info: Prevented reading app description in invalid cases
esp_rfc2217: Fixed keyboard interrupt on Windows
detect_chip: Fixed to select the correct loader before further operations to avoid silent failures
usb_resets: Fixed resetting in USB-OTG and USB-Serial/JTAG modes

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

Results of checking the release against common anti-virus SW

The failures are probably false positives. You can mark esptool as safe in your anti-virus SW, or install esptool from source.

@befeleme

Bug Fixes

packaging: Fixed failing esptool imports on Windows (#1011)
packaging: Fixed unwanted Python scripts being included in the distribution (#1012)
ESP32-C2: Fixed ECO4 magic number

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

Results of checking the release against common anti-virus SW

The failures are probably false positives. You can mark esptool as safe in your anti-virus SW, or install esptool from source.

Releases: espressif/esptool

Version 5.2.0

✨ New Features

🐛 Bug Fixes

Results of checking the release against common anti-virus SW

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Version 4.11.0

✨ New Features

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Version 4.10.0

New Features

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Version 5.1.0

✨ New Features

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Version 5.0.2

🐛 Bug Fixes

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Version 4.9.1

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Version 5.0.1

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Version 5.0.0

🚨 Breaking changes

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Version 4.9.0

New Features

Bug Fixes

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Version 4.8.1

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