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[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.

Recent Discussions

Discussion List

Discussion
Started By
Replies
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Most Recent
Import animation from a Json into the animator? in Help
yoowillnsyoowillns
1
193
yoowillnsyoowillns
[Live2d/PRO license] unable to connect to internet(2,-132) issue. How to troubleshoot this issue? in Help
Answered
samsam
1
272
ueno(staff)ueno(staff)
some question to license in Help
sakura_twsakura_tw
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108
sakura_twsakura_tw
How Can I Change Part Opacity Runtime? in Help
LingLuanLingLuan
0
183
LingLuanLingLuan
my live 2d image becomes a lot when i want to edit it in Help
Answered ✓
NailaNaila
2
223
NailaNaila
I cannot export my model to cmo3 in Help
PuchiPuchi
2
263
kudo(Staff)kudo(Staff)
HELP!!!!!!! in Help
kiara293kiara293
1
73
kudo(Staff)kudo(Staff)
Crashing in Help
AngieTheCatAngieTheCat
11
2.7K
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Error Exporting .moc3 file in Help
spatsulaspatsula
3
192
PuchiPuchi
Live2D Change Dress Method in Help
LingLuanLingLuan
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63
LingLuanLingLuan
Issue with Keyframes in Help
Answered
StarslastforeverStarslastforever
2
547
StarslastforeverStarslastforever
How do I switch lots of clothes,Different shapes and pictures in Tips and Tricks
LingLuanLingLuan
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111
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Angle X switched in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
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250
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AveryAvery
1
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Fix the deformer for deformer validation? in Tips and Tricks
KPYoumuKPYoumu
1
168
kudo(Staff)kudo(Staff)
Step Parameter in Feature requests
Ran_THRan_TH
2
422
Ran_THRan_TH
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Answered ✓
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Answered ✓
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1
446
kudo(Staff)kudo(Staff)
Program won’t open at all in Help
hexhex
4
136
kudo(Staff)kudo(Staff)
why is it low resolution and blurry when i open physics/scene blending settings? in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
reichi404reichi404
1
225
kudo(Staff)kudo(Staff)
[BUG?] Set input image to artmesh gives different output? in Help
Ran_THRan_TH
2
335
Ran_THRan_TH
Invalid license key (5 ,-1005) in Help
Answered ✓
kowaiteakowaitea
2
949
kowaiteakowaitea
More Assignable Keyboard Shortcuts in Feature requests
Ran_THRan_TH
4
724
ieatmodelsieatmodels
about rotation deformer in Help
AriaAriAriaAri
1
83
kudo(Staff)kudo(Staff)
upgrade from Free to Trial?? in Help
StormyBucketsStormyBuckets
1
444
kudo(Staff)kudo(Staff)
Not Opening: Cubism Viewer (for OW) 4.1.04 in Help
AsaAsa
1
205
kudo(Staff)kudo(Staff)
"Format not supported" Help? in Help
GilligcatGilligcat
3
1.9K
kudo(Staff)kudo(Staff)
Mesh generator in Help
Abbyss_00Abbyss_00
7
587
Abbyss_00Abbyss_00