No, I mean keyboard release.
When I hold the SHIFT button (Maybe I am pressing Shift+Right to select an area of text), it will generate wx.EVT_KEY_DOWN event all the time.
I think maybe I didn’t explain clearly.
Like there is a text: A quick brown fox jumps over the lazy dog
And I use cursor to select the word fox, and after a while I select dog. And this is the “selection changed” I mean.
I think this is not relative with “old string” and “new string”.