> it only got tabs in 10.10 (Sierra) I don't think that's true. I definitely had tabs in Lion (10.7) and I'm pretty sure they're at least as old as Leopard (10

> it only got tabs in 10.10 (Sierra) I don't think that's true. I definitely had tabs in Lion (10.7) and I'm pretty sure they're at least as old as Leopard (10.5) and maybe older.