Important side observation just made today: (Apparently) Starting wIth this update, manual installation of Fairphone OS on the FP3 now requires the bootloader to be unlocked [might have already been the case with the Vodafone-only A.0124, but who knows]
This was not a requirement with the manual installation of A.0120 and significantly limits the use of manual installation. Example: I have now had two users whose FP3s are somewhat bricked/stuck in Fast Boot Mode (choosing the Recovery Mode or Power Off option there only leads back to Fast Boot Mode) who would want to manually re-install Fairphone OS – but can only do so using the older A.0120 installation package because the newer package on Fairphone’s website requires the bootloader unlocking (which they cannot do that easily given the state of being arrested in Fastboot Mode). So anyone who needs a manual (re-)installation and cannot unlock the bootloader and is on a somewhat current system version can only succeed if s/he accepts data loss – because in many cases, installing A.0120 will be a downgrade to their FP3.
Forgive me if this change was already discussed elsewhere.