fix(firmware): correct bootloader version for FW 1.11.1#174
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vdovhanych
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Jun 29, 2026
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Description
Fix a mistake in bootloader version definition for 1.11.1 firmware.
This value is now critically important since trezor/trezor-suite#29085, because it can cause false positives in FW revision check in Trezor Suite.
To be sure, I checked all versions from 1.8.0 and above, but found no inconsistency ✔️
Proof
This page states that downgrading from FW 1.11 to FW 1.10 is not possible, which makes it highly implausible that FW 1.11.1 would share BL 1.10 with FWs 1.10.x.
But most importantly I checked it in firmware repo:
→ when BL 1.11.0 was released, the current FW was 1.11.0
→ when FW 1.11.1 was released, the current BL was 1.11.0
No such inconsistency was found for FW >= 1.8.0.
TBH I could only reliably check FW >= 1.9.0, because the
legacy/bootloader/version.hfile did not exist before then, and I did not find any other file specifying BL version at 1.8.x.So I assumed if FW 1.9.x has BL 1.8.0, it makes sense that FW 1.8.x will have the same BL 1.8.0.