it was release from 13. august 2024. (lineage-21.0-20240813-nightly-FP5-signed.zip)
I found Is it safe to lock bootloader? - #25 by yvmuell - but that wasn’t very clear… 
it was release from 13. august 2024. (lineage-21.0-20240813-nightly-FP5-signed.zip)
I found Is it safe to lock bootloader? - #25 by yvmuell - but that wasn’t very clear…