I am soon to be new to the world of photo editing. I am looking for advice on which version of photoshop I should be purchasing.

Here are some of the things I am looking to do with my personal photos.
Excuse me if the terminology is not correct.

Merge or fade two photos together, like adding a faint image to the background or foreground of another photo.

Repair or restore some scanned photos

Perhaps add some text to photos (make greeting type photo cards?)

Enrich or change colors (sky brighter ect...)

Remove unwanted parts of a photo, enlarge, shrink and general editing.

Thanks in advance for your help.