Apple officially released macOS 27 Golden Gate on September 14, 2026, following the initial developer beta on June 8, 2026, and the public beta release in mid-July 2026.We are thoroughly testing it to ensure compatibility with our products. Based on our current tests, Archicad operates with the issues listed below.
We are currently aware of a stability issue that can cause Archicad to crash when starting a new project.
We will update this article with the latest news while testing macOS 27 Golden Gate.
We currently do not recommend upgrading your primary Mac to macOS 27 Golden Gate.
Known issues
Archicad 30
Archicad may crash when starting a new project from the Starter
Issue
When clicking New in the Starter, Archicad may crash on macOS 27 Golden Gate. In our tests this occurs intermittently: in some cases Archicad starts as expected, in others it crashes. After a system restart, Archicad usually runs again.
Workaround
Restart the macOS system before launching Archicad if you encounter the crash. If Archicad continues to crash, avoid using the Starter and open an existing project file instead.
Solution
The issue is still under investigation. We’ll keep you posted as we learn more.
Color picker does not behave as expected
Issue
On macOS 27 Golden Gate, the color picker shows minor visual or functional inconsistencies when used from Archicad.
Workaround
Use predefined pen sets and surfaces where possible, and avoid frequent changes via the color picker if you notice unexpected behavior.
Solution
We are working on a fix that is planned to be included in the Archicad 30 RC build. We will update this article when the fix is available.
The installer log shows unknown OSX Version
Issue
On macOS 27 Golden Gate, the installer log shows "Current operating system: OS X unknown".
This does not affect functionality of Archicad, but it may be confusing for users.
Workaround
No workaround.
Solution
The issue is still under investigation. We’ll keep you posted as we learn more.
Single-clicking an element triggers unintended drag / momentary hang
Issue
On macOS 27.0.1, single-clicking an element to select it, can cause Archicad to hang momentarily and immediately enter drag mode without any command or key pressed.
Workaround
Use Area Selection to select the relevant elements.
Solution
The issue is still under investigation. We’ll keep you posted as we learn more.
Archicad 29
Issue
On macOS 27.0.1, single-clicking an element to select it, can cause Archicad to hang momentarily and immediately enter drag mode without any command or key pressed.
Workaround
Use Area Selection to select the relevant elements.
Solution
The issue is still under investigation. We’ll keep you posted as we learn more.
Archicad 28
Compatibility testing for Archicad 28 on macOS 27 Golden Gate is still in progress. At this stage we cannot provide a definitive compatibility statement.
BIMcloud
Note: Rosetta requirement for BIMcloud on Apple-silicon Macs
When upgrading an Apple-silicon Mac running BIMcloud to macOS 27, Rosetta is removed from the Mac. Even if Rosetta was installed on an earlier macOS version, it must be installed again after the upgrade.
Rosetta is currently required for BIMcloud installations hosted on Apple-silicon Macs. If Rosetta is not installed, BIMcloud may not start or operate correctly.
To reinstall Rosetta, open any Intel-based application and follow the installation prompt.
For Apple’s official instructions, see Use Rosetta to run Intel-based apps on a Mac with Apple silicon.
Please note that there is a new security feature (introduced on Sequoia) that blocks network searching. Make sure to authorize Archicad on the local network to access BIMcloud from Archicad.
How to authorize:
Go to System Settings > Privacy & Security > Local Network and enable this setting for all Archicad versions.
BIMx
We are not aware of any issues in BIMx Desktop.
Before upgrading to Golden Gate
We currently do not recommend upgrading your primary Mac to macOS 27 Golden Gate.
Should you decide to upgrade, please follow the upgrade checklist below.
Upgrade checklist
- Study macOS Golden Gate articles for any known issues and difficulties
- Back up all of your data, including Archicad- and BIMcloud-specific data before upgrading the operating system
- Upload all Software keys to the License Pool
- Return all borrowed licenses before upgrading the OS
- Allow yourself enough time for the upgrade, do not upgrade the OS close to a deadline
- Install macOS Golden Gate
- Install all updates for the new operating system
- Install all updates for Graphisoft products
- Install the macOS Golden Gate compatible protection key driver
- Allow Full Disk Access for CodeMeter
- Test Archicad and BIMcloud
