ChatGPT desktop 26.730 installs on macOS 12 but requires macOS 13 at launch

What version of the Codex App are you using (From “About Codex” dialog)?

26.730.61639 (build 6234)

What subscription do you have?

ChatGPT Pro 20x

What platform is your computer?

Darwin x86_64 i386

What issue are you seeing?

The automatic update from ChatGPT/Codex desktop version 26.727.51351 (build 6119) to version 26.730.61639 (build 6234) made the application incompatible with macOS Monterey.

Environment:

• Mac model: MacBookAir7,2
• Processor: Intel x86_64
• macOS: Monterey 12.7.6
• Last working version: 26.727.51351 (build 6119)
• Broken version: 26.730.61639 (build 6234)

Steps to reproduce:

1. Run version 26.727 successfully on macOS 12.7.6.
2. Accept the application's automatic update.
3. Attempt to open the updated application.

Actual result:
macOS displays the following error and refuses to open the application:

“You can’t use this version of the application ‘ChatGPT’ with this version of macOS. You have macOS 12.7.6. The application requires macOS 13.0 or later.”

Expected result:
The updater should not offer or install an incompatible update on macOS 12, or the updated application should continue supporting macOS 12.

Technical findings:

• The x86_64 executable in version 26.727 has LC_BUILD_VERSION minos 12.0.0.
• The x86_64 executable in version 26.730 has LC_BUILD_VERSION minos 13.0.0.
• However, the 26.730 application Info.plist still declares LSMinimumSystemVersion as 12.0.

This metadata mismatch causes the updater to install an application that cannot run on macOS Monterey. Please restore macOS 12 compatibility or correct the update metadata so macOS 12 users are not offered this update.

What steps can reproduce the bug?

1. Use an Intel Mac running macOS Monterey 12.7.6. The affected machine is a MacBookAir7,2.

1. Install and open ChatGPT/Codex desktop version 26.727.51351 (build 6119). Confirm that it launches and works normally.

1. Accept the in-app automatic update to version 26.730.61639 (build 6234).

1. After the update finishes, attempt to reopen ChatGPT.

1. macOS refuses to launch the application and displays:

“You have macOS 12.7.6. The application requires macOS 13.0 or later.”

The compatibility metadata can be inspected with:

sw_vers
uname -mps

defaults read /Applications/ChatGPT.app/Contents/Info \
  LSMinimumSystemVersion

otool -l /Applications/ChatGPT.app/Contents/MacOS/ChatGPT \
  | grep -A5 LC_BUILD_VERSION

### What is the expected behavior?

_No response_

### Additional information

_No response_