[MacOS] Anki Error with Opening App after Trying to Update: certificate is not standards compliant

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Thank you for that information.

Are you able to view the https://pypi.org URL in Safari, or do you get a similar SSL certificate-related error?

  • You are using macOS Sequoia15.6.1 which was released in August 2025.
  • The other person who saw the same error was using macOS Sonoma 14.7.7 which was released in July 2025. (That other person didn’t see the problem until updating to 14.7.7.)
  • I am wondering if the problem (OS certificate store) might have been introduced into the macOS updates around that time in July/August 2025?
  • I am wondering whether the problem might go away by updating to a more recent OS version?

I’m not sure whether you might be willing to try updating your OS to see if it helps, but I note that the most recent version of macOS Sequoia is now 15.7.4.

If you are interested in investigating the workarounds instead, you can find details in this comment.