There's no official setting to change it afaik, but there is a workaround to basically overwrite the system's
Shift+Delete and map it to be just
- Download, install and launch Karabiner.
- Go to the
Misc & Uninstall tab, and click the
Open private.xml button. A Finder window to a folder with a file named
private.xml should open.
private.xml file and replace its contents with the following:
<name>Shift+Delete to Backward Delete</name>
<autogen>__KeyToKey__ KeyCode::DELETE, ModifierFlag::SHIFT_L, KeyCode::DELETE</autogen>
<autogen>__KeyToKey__ KeyCode::DELETE, ModifierFlag::SHIFT_R, KeyCode::DELETE</autogen>
Go back to the
Change Key tab. There should be a checkbox named
"Shift+Delete to Backward Delete" in the list box (If you don't see it, click the
Reload XML on the upper right corner). Select it.
That should fix the issue. In my case doing this for some reason also changed the delay between tapping a key and the key press being repeated. That's just a slider in
System Preferences >
Bonus: Send feedback to Apple through the Feedback Assistant, or the online bug reporting site, or just wherever, so hopefully they fix this nonsense or at least add the a setting to change it.
From the reddit thread linked to by fdnhkj.