Changes in OS X 10.9.5 for signed apps

Apple changes the signature to version 2 and we all must re-signed our app on the AppStore.

Yep - check out this thread https://forum.xojo.com/14485-latest-code-signing-changes

You only need to resign your applications if they were signed on 10.8 or lower. Otherwise you’ll be fine, unless you have executable code in the resources folder…