trezor-firmware/core/embed/projects/bootloader/CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog.

2.1.10 [19th February 2025]

Fixed

• [T3T1] Fix slow fade in/non responsiveness in bootloader UI. #4492

2.1.9 [September 2024]

Changed

• [T3T1] Ignore touch errors while in manufacturing. #4195

2.1.8 [September 2024]

Added

• Added firmware downgrade protection. #4133

Changed

• Require confirmation when installing non-full trust firmware image on empty device. #3709
• Fix incorrect error message when installing firmware for different model. #4081
• [T3B1, T3T1] Added bootloader unlock mechanism to U5 models. #4133

Fixed

• [T3B1] UI adjustments: fix icon on warning screen, replace empty logo with full during boot. #4140

2.1.7 [July 2024]

Added

• [T3B1] Added support for T3B1.

2.1.6 [May 2024]

Added

• Added unit_packaging field to Features. #3711

Changed

• [T3T1] Changed USB manufacturer string to "Trezor Company" and product string to "Trezor Safe 5" in the USB descriptor strings. #3770

2.1.5 [April 2024]

Added

• Added support for T3T1
• Added basic support for STM32U5 #3370

Changed

• Speed-up device boot #3429

2.1.4 [November 2023]

Added

• Minimize risk of losing seed when upgrading firmware. #2794
• Support interaction-less upgrade. #2919

2.1.3 [September 2023]

Changed

• Split builds of different parts to use simple util.s assembler, while FW+bootloader use interconnected ones. #3205
• No longer erases seed when firmware is corrupted but firmware header is correct and signed. Added firmware corrupted info to bootloader screen. #3122
• Correctly reinitialize Optiga SE when rebooting. #3303

2.1.2 [August 2023]

Internal only release for Model R prototypes.

Added

• Added support for STM32F429I-DISC1 board #2989
• Locked bootloader support: bootloader will disallow installation of unofficial firmware unless the Optiga pairing secret is erased.
• Support unlocking the bootloader via UnlockBootloader message.

Changed

• Show "empty lock" logo together with model name (replacing the "filled lock" logo for bootloader entirely). #3222
• When building a PRODUCTION=0 bootloader, it will recognize the development signing keys instead of production ones.

Fixed

• Fixed gamma correction settings for Model T #2955

2.1.1 [June 2023]

Internal only release for Model R prototypes.

Added

• Added production public keys for T2B1. #3048
• Added UI for T2B1.

Fixed

• Fix installation of images smaller than 128kB. #2941

2.1.0 [April 2023]

Added

• Optimize touch controller communication #262
• Bootloader redesign #1049
• Add basic Trezor Model R hardware support #2243
• Jump and stay in bootloader from firmware through SVC call reverse trampoline. #2284
• Add RGB LED for Model R #2300
• Using hardware acceleration (dma2d) for rendering #2414
• Add stack overflow detection #2427
• Add model info to image and check when installing/running firmware #2623
• Introduced bootloader emulator. #2879

Changed

• Update logic of vendor header comparison. #1599
• CPU Frequency increased to 180 MHz #2587
• Fixed display blinking by increasing backlight PWM frequency #2595

Fixed

• Fixed retries counter when reading from USB #2896

Security

• Avoid accidental build with broken stack protector #1642

2.0.4 [May 2022]

Security

• Intentionally skipped this version due to fake devices

2.0.3 [March 2019]

Security

• Enable MPU
• Introduce delays to USB stack

2.0.2 [December 2018]

Added

• Support for a new display driver

2.0.1 [February 2018]

Added

• First public release