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

J. Landman Gay jacque at
Thu Jan 23 16:36:04 EST 2020

It should keep running. You just can't build any new apps.

On 1/23/20 3:25 PM, Tony Trivia via use-livecode wrote:
> Hi,
> Anyone know what happens if you let a Mac Developer ID Application cert
> expire? (I'm thinking of apps that are NOT in the Mac app store, but are
> distributed directly to users.)
> I've heard if this cert is revoked, that can block any apps from running
> that were signed with that cert. Just wondering what the effect is if the
> cert just expires.
> Thanks.
> Tony
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Jacqueline Landman Gay         |     jacque at
HyperActive Software           |

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