How to debug issues caused by 10.15.4 Upgrade

Question

Created Mar ’20

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10.15.4 caused major disruption of my published app. This is the first time I have had a problem with an OS upgrade. How does one approach finding the cause? I have problems with Sandbox secure urls pointing to the wrong location and screen coordinate variations from previous appearaces. At least that's how it appears.

I'm not asking for the answers, just how to go about finding them. In the past I've seen change lists for upgrades, but couldn't find them for this upgrade.

Frankly, I'm freaking out about this. Get me started on a rational approach to address these issues.

Thanks

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Answer 1

Claude31 OP

Mar ’20

Can you reproduce yourself or is it only through customer feedback ?

In case you can test with XCode 11.4 and OSX 10.15.4, I suggest to instrument the code with print statements at critical places to first understand what's going on (what is the passed URL, …)

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Answer 2

carlfromtucson OP

Mar ’20

Thanks, I'll give that a try. I was hoping to starf with a clue from a list of changes to the OS.

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Answer 3

Claude31 OP

Mar ’20

Unfortunately, the release notes are never that precise.

Good luck, and thanks for reporting what you will find.

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