Apple released macOS 26 Tahoe on September 15, 2025. 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 not aware of any critical issues. However, please hold off on upgrading your Mac for now.
We will update this article with the latest news while testing macOS 26 Tahoe.
Known issues
Archicad 28 and earlier versions
Cineware crashes with an error message: "Cineware by Maxon add-on has unexpectedly closed." since Sequoia
Affected version(s): all Archicad versions | ID: DEF-22356
Issue
When attempting to render an image with Cineware or change the Surface Settings for the Cineware engine, it returns an error: "Cineware by Maxon add-on has unexpectedly closed.". This issue was first found in macOS 15 Sequoia.
Workaround
Restart your device. If it does not help, replace the Cineware folder (/Applications/Graphisoft/<Archicad version>/Cineware) with the working one.
Solution
The fix for this issue is planned for Archicad 30. We’re also looking into backporting it to earlier supported versions, but this isn’t confirmed yet. In the meantime, please use the suggested workaround and contact support if the issue persists. We’ll keep you posted as we learn more.
Archicad 27 and earlier versions
Chevrons are not centered in parts of the Archicad interface
Affected version(s): Archicad 27 and earlier versions
Issue
Chevrons are not centered in parts of the Archicad interface.
Workaround
No workaround.
Solution
The issue is fixed in Archicad 28.
Double-clicking on an Archicad window title bar may not resize the workspace to fill
Affected version(s): Archicad 27 and earlier versions
Issue
If the relevant option is chosen in System Settings > Desktop & Dock, the Archicad workspace may not resize to fill after double-clicking on the window title bar. The rest of the window may stay grey.
Workaround
Use the default Zoom option or update the Work Environment in any way (choose any Work Environment profile or resize any palettes, toolbars, etc.).
Solution
The issue is fixed in Archicad 28.
Archicad workspace may not resize when using window tiling
Affected version(s): Archicad 27 and earlier versions
Issue
Depending on whether the Archicad window was smaller or larger before docking, a part of its window may become grey and unresponsive when docked or dragged after docking.
Workaround
Update the Work Environment in any way (choose any Work Environment profile or resize any palettes, toolbars, etc.).
Solution
The issue is fixed in Archicad 28.
BIMcloud
While we are still in the active phase of testing BIMcloud, we are not aware of any critical issues so far.
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.
More details
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 2025.6760 or newer.
Before upgrading to Tahoe
Should you decide to upgrade, please follow the upgrade checklist below.
Upgrade checklist
- Study macOS Tahoe 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 Tahoe
- Install all updates for the new operating system
- Install all updates for Graphisoft products
- Install the macOS Tahoe compatible protection key driver
- Allow Full Disk Access for CodeMeter
- Test Archicad and BIMcloud
Archicad compatibility by different versions
Archicad 29 & 28
- Archicad 29 FULL is compatible and will receive compatibility updates.
- Archicad 28 FULL and SOLO are compatible and will receive compatibility updates.
Archicad 27 & Archicad 26 & Archicad 25
- Archicad 27 FULL and SOLO will start but not receive compatibility updates.
- Archicad 26 FULL and SOLO will start but not receive compatibility updates.
- Archicad 25 FULL and SOLO will start but not receive compatibility updates.
Archicad 24 & earlier
- Archicad 24 FULL and SOLO & earlier will not start.
Archicad STAR(T) Edition
- Archicad SE 2024 & earlier will not receive compatibility updates.
