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Bump esptool from 3.3.1 to 4.9.1#226

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Bump esptool from 3.3.1 to 4.9.1#226
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dependabot/pip/esptool-4.9.1

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@dependabot dependabot bot commented on behalf of github Jul 31, 2025

Bumps esptool from 3.3.1 to 4.9.1.

Release notes

Sourced from esptool's releases.

Version 4.9.1

🐛 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.

Version 4.9.0

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

... (truncated)

Changelog

Sourced from esptool's changelog.

v4.9.1 (2025-07-30)

Bug Fixes

  • esp32-c3: Disable flasher stub when Secure Boot is active
  • esp32-s3: Allow stub flasher execution with active Secure Boot
  • Fix buffering issues with CP2102 converter causing connection failures
  • elf2image: Add support for ESP32-H4 MMU page size configuration
  • elf2image: validate ELF section types and addresses before processing
  • elf2image: handle PREINIT_ARRAY section type in ESP32-P4 elf file properly
  • enable auto-detection of ESP32-S2 in secure download mode
  • enable ESP32-P4 ECO5 chip detection

v4.9.0 (2025-06-19)

New Features

  • espefuse: Add eFuses for ESP32-C61 ECO3
  • espefuse: Support efuse for ESP32-C5 ECO2 (v1.0)
  • stub_flasher: Support for >16MB flash on P4 and >16MB encrypted writes on S3
  • espefuse: Updates esp32h4 efuse table and fixes tests
  • esp32h4: add ESP32H4 esptool support
  • esp32h21: Add Microsoft UF2 family ID
  • print usb mode when output chip info
  • watchdog_reset: Add a new watchdog_reset option working even in USB modes
  • espsecure: Improves an error message for encrypt_flash_data and decrypt_flash_data
  • espefuse: Clean up efuse code for ESP32H2
  • espefuse: Support different efuse table versions for ESP32H2
  • espefuse: Adds efuses for esp32h2 eco5
  • esp32h21: add ESP32H21 esptool support
  • Add new app description segments
  • esp32-p4: add support for flasher stub in USB OTG mode
  • esp32-c5: Add ECO1 magic number
  • esp_rfc2217: Improved the logger message format
  • espefuse: Adds 3 bit for PSRAM_CAP efuse field
  • espefuse: Adds API for getting block and wafer versions
  • espefuse: Adds ADC calibration data for ESP32-C61
  • espefuse: Adds ADC calibration data for ESP32-C5
  • espefuse: Adds ADC calibration data for ESP32-P4
  • add filtering based on serial number
  • erase_region: Enable erasing in ROM bootloader and SDM
  • hard_reset: Support custom hard reset sequence configuration
  • Add support for Python 3.13

Bug Fixes

  • Do not use padding for merged IntelHex files
  • stub_flasher: Fix USB-Serial/JTAG mode on C5 ECO2 and C61 ECO3
  • write_flash: Detect more cases of unresponsive flash, fix failing flash_size check
  • stub_flasher: Fix ESP32-C5 ECO2 flashing

... (truncated)

Commits
  • 81ac6b8 change: Update version to 4.9.1
  • a03158c fix(esp32-c3): Disable flasher stub when Secure Boot is active
  • a846531 fix(esp32-s3): Allow stub flasher execution with active Secure Boot
  • 72f6b0d fix: Fix buffering issues with CP2102 converter causing connection failures
  • 5ae594b fix(elf2image): Add support for ESP32-H4 MMU page size configuration
  • e67ec01 fix(elf2image): validate ELF section types and addresses before processing
  • f5404fa fix(elf2image): handle PREINIT_ARRAY section type in ESP32-P4 elf file properly
  • 624f1b6 fix: enable auto-detection of ESP32-S2 in secure download mode
  • 2d6d72c ci: enable 32 MB flash size tests for ESP32-P4
  • e21a97f test(esptool): add test to check --chip argument
  • Additional commits viewable in compare view

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Bumps [esptool](https://github.com/espressif/esptool) from 3.3.1 to 4.9.1.
- [Release notes](https://github.com/espressif/esptool/releases)
- [Changelog](https://github.com/espressif/esptool/blob/v4.9.1/CHANGELOG.md)
- [Commits](espressif/esptool@v3.3.1...v4.9.1)

---
updated-dependencies:
- dependency-name: esptool
  dependency-version: 4.9.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot bot added dependencies Pull requests that update a dependency file python Pull requests that update Python code labels Jul 31, 2025
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dependabot bot commented on behalf of github Sep 17, 2025

Superseded by #234.

@dependabot dependabot bot closed this Sep 17, 2025
@dependabot dependabot bot deleted the dependabot/pip/esptool-4.9.1 branch September 17, 2025 08:06
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