A newer 9mm slide SHOULD fit any vintage .40 frame correct?

Since newer P229’s all use the same frame?

I’ll just need P229-1 mags (which I already have).

Thanks in advance.

ETA, would that require the different locking insert I keep seeing mentioned in my searches?

Lots of info in this thread...
https://sigforum.com/eve/forum...935/m/5050009784/p/1

This thread has a photo of the two different locking inserts...
https://sigforum.com/eve/forum...60016734&s=674608412

And then there's a newer third version, which 12131 has posted about awhile back.