Since [[6.2.0]], the following was changed (besides the usual constant changes for new fuse burnt, incremented version, etc):
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* A function that returns a hardware type now returns 0xF whenever it would previously have returned a non-zero value.
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** Code validating hardware type has been simplified accordingly.
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* The function validating the bootloader version by parsing the BCT no longer hardcodes the BCT address as 0x40000100, and instead adds a relative offset to a BCT address specified via argument.
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* The [[TSEC Firmware#SecureBoot|SecureBoot TSEC firmware]] was updated to prevent SMMU virtualization attacks.