[About Cubism Editor / SDK 5.4 Alpha](Updated: July 14, 2026)
You can download the alpha installer from the dedicated forum below.
If you have any feedback regarding the alpha version, including feature requests or bug reports, please use the same forum.
Cubism Editor / SDK 5.4 Alpha Forum
https://creatorsforum.live2d.com/c/cubismeditorsdk54alpha/
[Regarding macOS Tahoe](Updated October 16, 2025)
macOS v26 Tahoe is now supported!
We advise against upgrading your macOS at this time as it may cause Live2D products not to function correctly.
Upgrading macOS can also cause you to lose your Cubism Editor license file.
Please make sure to deactivate your Cubism Editor license before upgrading the macOS.
For more details:
https://help.live2d.com/en/other/other_09/For inquiries regarding issues with license purchases or license activation errors, please contact us through the
email form.Pro Key issues Error (1,-153)
When I purchased my key and typed it in, it gave me the error (1,-153). What do I do? I've also tried to contact, but I still haven't gotten a response.
0 ·
Comments
Thank you for your contact.
We apologize for any inconvenience this may cause.
Have you tried contacting us from the following page?
If not, please contact us again from the following page.
Please select "Question AFTER Purchasing".
https://www.live2d.jp/eng/contact/?redirect=1
Thank you.