TextPad is still being updated and available for sale (the latest release was on 11 April 2021). It's even older than PSPad. Wikipedia says it was first released in 1992, that's almost 30 years ago. (https://www.textpad.com/products/textpad/features)
I'm impressed by the longevity of both PSPad and TextPad and it's refreshing to encounter fast, native, nimble desktop programs.
I usually keep up with TextPad's updates, and also bought and paid for it and their other tool called WildEdit which is pretty neat. Also TextPad's ability to handle monster files was and still is quite impressive.
Same here, and TextPad from the same era still works (I occasionally try the version in my download archive saved back around 2001).