I feel silly for asking this, I’ve read the documentation and some other posts (that seem to have issues and resolutions beyond my simple question 
, like this one that is doing it via command line), but seeing as I have yet to do this since diving into HA, I want to ensure there isn’t something I am missing.
I’ve recently updated to 2025.3 and it’s broken some light attributes (specifically Ikea bulb attributes from Z2M), seems I can revert to 2025.2.5 to restore functionality.
What is the best way/practice to restore to older OS version? Can I simply run the selection below to replace the core? Or should I select it all ?
Thank you for entertaining my simple question. 