Retrieve backup from SD card

My Rasperry 3b+ just went south and I am planning to replace with a 4b. I assume HA will not run on the 4 by just swapping the SD from the 3, so is there anyway I can retrieve the config and/or most recent backup from the old SD card?
I do have an external backup available so not completely on scratch, however I must admit it might be a couple generations old so it would be nice to copy the scripts from the most recent config…… :slight_smile:

That is a correct assumption.

Yes. You will have to use a Linux PC, or boot from a Linux live USB or Use Disk Internals Linux Reader on Windows to read the card though.

Seems like the card had some corruption as well but the most important files ate retrieved and I am now waiting for my Pi 4. Thank you for your help.