When was/will be the latest firmware update for FP3

[HolosericaCaligo]

@frank-bxl

somewhere I read, that lineage OS doesn’t provide devices with latest firmware updates.

that depends on the developer who maintains LineageOS for the respective device.
Custom ROMs for FP3 (and also FP4) normally do include those firmware files.

Official LineageOS 18.1 for Fairphone 3/Fairphone 3+

Hello All, A short update on what’s happening with respect to LineageOS 18.1 for FP3: We have a huge set of changes lined up(https://review.lineageos.org/q/topic:FP3-stock-R-changes). This would help fix most of the reported issues(the Bluetooth audio, the camera). As part of this change, we are now migrating to Official Android 11 proprietary blobs + new and up-to-date kernel source. Since it’s a huge change we are currently involved in an in-depth validation phase to make sure everything wo…

So if you’re using the official LineageOS, iodéOS or /e/OS, you should get firmware updates.

But this is not the case if you use LineageOS4microG, as these builds do not contain firmware blobs.
I once just adb sideloaded the official LOS over LOS4microG to get the newest firmware blobs and then adb sideloaded LOS4microG again.
But keep in mind that a downgrade usually doesn’t work. So the LOS build must be newer than the originally installed LOS4microG build. And to be able to sideload LOS4microG over LOS again, this build must in turn be newer than LOS. Otherwise, the operating system will not boot.
This process worked perfectly for me without any loss of data. Nevertheless, it is preferable to make a backup beforehand.