if you look in first post you could answer this question yourself.
it is a transposed number fault - in thread title only
"Last Updated 2020-02-18" and zip file has also correct date "lineage-15.1-20200218-UNOFFICIAL-herolte_signed.zip"
/* * Your warranty is now void. * * I am not responsible for bricked devices, dead SD cards, * thermonuclear war, or you getting fired because the alarm app failed. Please * do some research if you have any concerns about features included in this ROM * before flashing it! YOU are choosing to make these modifications, and if * you point the finger at me for messing up your device, I will laugh at you. */