How do I reverse pound/hash signs on macOS Tahoe 26.1?

Which keyboard layout are you using? US?

In the US layout Option-3 produces £, and Shift-3 produces #

If you want these keys to function the other way around, you need only use a differebnt keyboard layout.

The British layout does exactly that.

I did not check all the key combinations, but other than that change, the two layouts look exactly the same.

To add another layout, go to System Settings->Keyboard, locate "Input Sources", and click on "Edit...".

Also, make sure to keep "Show Input Menu in menu bar" checked; this way you can quickly switch from one layout to another, if needed.

dialabrain wrote:

My mistake, based on the re-titling.

At least someone in the re-titling department knows that, before Twitter, it was called "pound sign" in the US. Personally, I prefer "octothorpe." It avoids all the ambiguity.

I don't believe you can.

FWIW, you should update to 26.2.

My mistake, based on the re-titling.

I thought you meant…

😎

I would have had to look up octothorpe. 😎

dialabrain wrote:

I would have had to look up octothorpe. 😎

See, you learned something and didn't even have to look it up!