Do Mac OS apps stop working if your Mac Developer ID Application cert expires?

Tony Trivia quizzicaltimes20 at
Fri Jan 24 13:47:21 EST 2020

Thanks for the insights, Mark.

On Fri, Jan 24, 2020 at 12:30 PM Mark Waddingham via use-livecode <
use-livecode at> wrote:

> On 2020-01-24 17:41, Tony Trivia via use-livecode wrote:
> > Thanks to all who replied. The scope of my concern is strictly for
> > MacOS
> > standalone builds that are distributed outside of the App Store.
> > Such builds are blissfully simple compared to mobile device builds. For
> > years, I've been able to sign such apps without any provisioning certs.
> > (Since Apple has virtually no role in the distribution, it is not
> > involved
> > in the beta testing or updating of the app.) All I've needed to build
> > releases is the standard Developer ID Application cert, and those are
> > typically good for five year spans.  But, eventually I won't be here to
> > renew the thing and I'd like any apps I make to carry on. So I hope
> > JLG's
> > prediction is correct!
> I believe that as long as you sign, notarize and then staple the results
> of the notarization to your app (or DMG - if you distribute using that
> method) then expiry of your developer id / certificate (should that
> occur)
> will have no effect on them.
> Just signing is no longer sufficient for the OS to verify an app on
> Catalina
> (and it seems, to a certain degree, on recent versions of Mojave!).
> Notarizing but not stapling means the OS will always do a 'callback' to
> Apple's servers to check integrity.
> Stapling after notarization means the app is verifiable as it is.
> At least that is my interpretation of the recent changes...
> Warmest Regards,
> Mark.
> --
> Mark Waddingham ~ mark at ~
> LiveCode: Everyone can create apps
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