Thank you for using Chatwork.
We would like to inform you that we will be updating Chatwork’s supported environments as follows:

• We will discontinue the 32-bit version of the Windows desktop app.
• The Mac desktop app will no longer support macOS 12. macOS 13 or later will be required.
• For the browser version on Mac, only the latest three versions of Safari will be supported.

If you are using any of the affected environments, please take the actions described in “Action Required” below before the change date.

 

Change Date

December 15, 2026 (Tuesday) (scheduled)
*The schedule is subject to change. If it changes, we will let you know on this page.

 

What Is Changing

Target	Current supported environment	Supported environment after the change
Windows desktop app	64-bit / 32-bit	64-bit only
Mac desktop app	macOS 12 or later	macOS 13 or later
Browser version (Safari on Mac)	Safari 15.6 or later	Latest three versions of Safari (Safari 18 / 26 / 27 as of October 21, 2026)

The following are not affected by this change and can be used as before:

• 64-bit version of the Windows desktop app
• Browser version on Windows
• Mobile apps (iOS / Android)

 

Operation after the end of support

Windows desktop app (32-bit)

• The 32-bit version will be removed from the download page.
• Updates will no longer be released for the 32-bit version.

Mac desktop app (macOS 12)

• New versions of the app released after the change date will not work on macOS 12.

Browser version (Safari 17 or earlier)

• Safari 17 and earlier will no longer be supported environments.

In all cases, apps and browsers you are already using will not stop working right away on the change date. However, they will no longer be covered by our operation guarantee or support, and we will not investigate or fix issues specific to those environments.

 

For customers using the affected operating systems

Please take the following action depending on your environment.

 

Windows: If you are using the 32-bit app on 64-bit Windows
Please download and install the 64-bit app from the download page. You do not need to change your Windows.

 

Windows: If you are using 32-bit Windows
Please consider upgrading to 64-bit Windows or replacing your PC.

 

Mac: If you are using macOS 12
Please update macOS to version 13 or later. If your Mac does not support macOS 13 or later, please consider replacing your Mac. You can check which models are supported on Apple’s official website.

 

Mac: If you are using Safari 17 or earlier
Please update Safari to the latest version. If you cannot update Safari, please update macOS.

 

If the above actions are difficult
On Windows, please use the browser version of Chatwork.

 

*Your chat history, files, tasks, and other data will remain intact even if you reinstall the app or update your OS.

 

How to Check Your Environment

Check whether Windows is 32-bit or 64-bit

1. Open Windows “Settings”
2. Go to “System” > “About”
3. Check “System type”

Check your macOS version

1. Open the Apple menu in the top-left corner of the screen
2. Select “About This Mac”
3. Check the macOS version shown

Check your Safari version

1. Open Safari
2. In the menu bar, select “Safari” > “About Safari”
3. Check the version shown

 

For Organization Administrators

If anyone in your organization uses an affected environment, please let them know about the actions above before the change date.

We apologize for any inconvenience this may cause, and we appreciate your understanding and cooperation as we work to keep Chatwork safe and secure.

If you have any questions regarding this matter, please contact us through the form below.
Contact Form

 

Thank you for your continued support of Chatwork.