car title question: liens UPDATE with forced to change plate question

Looking at a truck. The title has a lien on it that had a signature next to it from the bank on the line that said "lien released" with the date it was signed under it.

Does the person have to apply for a new title with the lien off makingiit a "clean title" to sell or is the banks signature and date sufficient to prove the lien was paid off.

Texas title ftr.

UPDATE:

So i registered my truck.

they made me turn in my old Louisiana plate and charged me for a new one. They said a few years ago they changed the plate based on weight classes of he vehicle and i could no longer have the plate that was issued 4 years ago to the vehicle. Is there a reason? I can not find any info but they charged me $100 for the new plate. It was a title place and not a DMV. I am in an F150 and it is a passenger truck wth a Vehicle weight of 5800 lbs. They said anything over 6100 lbs needed a new plate and i was better off buying one instead of risking a heavy fine.

I can find nothing online with these rules or breakdowns...

Thanks

Thanks