0.5.6

• Compiled with ARM GCC 10/21
• Adding s140 and no SD variants to Github Releases list

0.5.3

Added Arduino Nano 33 BLE

0.5.1

• Enforces SD7 API for client applications
• Updates to App Timer V2 from legacy App Timer

0.5.0

• Updates SDK dependency to 16.0.0
• Updates SoftDevice to 7.0.1

0.4.0

• Adds support for Particle Boron and Particle Argon boards

0.3.0

• Add support for Adafruit nRF52840 Feather Express

0.2.0

• Adds support for Particle Xenon
• Fixes an issue with single LED boards like Sparkfun nRF52840 Pro Mini
• Enables NRF_DFU_BL_ALLOW_DOWNGRADE flag, allowing bootloader downgrades.

NRF_BL_APP_SIGNATURE_CHECK_REQUIRED is presently disabled. Signature checks are not enforced at this time.

0.1.0 Bootloader

Initial release of Kaidyth nRF52 Bootloader for nrf52840 chipsets

This release provides the following feature set:

- Based on nRF52 Secure Bootloader
- DFU over BLE OTA + USB Serial
- Self Upgradable via OTA + USB Serial
- Double Reset DFU Trigger
- Bundled S140 Soft Device

This revision is built without NRF_DFU_BL_ALLOW_DOWNGRADE, meaning it cannot be downgraded. Future revisions may enable this feature to allow bootloader downgrades. If you want your bootloader to be downgradable, build your own version using the provided Dockerfile without this option specified.

This release is also configured with NRF_BL_APP_SIGNATURE_CHECK_REQUIRED disabled, meaning that applications don't need a proper signature to be flashed. This option may be enabled in future version.