On 5 Feb 2021, at 1:48, Paul McCann via TextMate wrote:

I received the familiar "update downloaded" notification for TextMate, and
installed it as per usual. Unfortunately it seems that it is only for
10.15+

Thanks for the information and sorry about the inconvenience..

It was actually built for 10.12 and has LSMinimumSystemVersion set to 10.12.

But it is a universal build with support for M1, so perhaps something in that process made it implicitly require 10.15.

It’s not unusual that I can’t build for older versions of macOS, after updating Xcode/SDK, but most of the time, it manifests itself as crashes or linker errors (when running the build on older versions of macOS).

I will look into this later, and see if I can’t manage to get a build done that runs on 10.14 and earlier.