To be clear, there is (currently) no such thing as transaction expiration. While individual mempools will drop transactions, anyone can re-broadcast them.
Discussion
Yup, thats what I assumed. Nodes don't automatically rebroadcast transactions though, right?
If I had a 1sat/vb transaction that hasn't been confirmed for over a year chances are most mempools would have dropped it, and those that didn't wouldn't rebroadcast it automatically, I'd have to rebroadcast?