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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
Views
Most Recent
The head and body of my model seem to have a problem I don’t understand it’s not moving together. in Help
Answered
Joey115Joey115
1
510
kudo(Staff)kudo(Staff)
Difficulty selecting keyframes in Editor in Feature requests
cilliacillia
1
121
kudo(Staff)kudo(Staff)
Getting extra images blown up in scene. in Help
OmieOmie
1
64
kudo(Staff)kudo(Staff)
It's a problem where you can't move your mouth when you export it to a json file. in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
Answered
peporilpeporil
12
934
peporilpeporil
Live2D doesnt open (macbook) in Help
jeanejeane
15
1.3K
ueno(staff)ueno(staff)
License activation failed in Help
mesarinmesarin
1
465
kudo(Staff)kudo(Staff)
Unable to close pop out windows at all, resulting in lost file. in Help
dochanheedochanhee
1
495
kudo(Staff)kudo(Staff)
I can neither export nor save my animation. in Help
KailyNKailyN
1
172
kudo(Staff)kudo(Staff)
All Live 2D Settings and Work Deleted, PLEASE HELP RESTORE [Logs attached] in Help
AngelicAceAngelicAce
1
942
kudo(Staff)kudo(Staff)
Can sound be used with animation files ? in Help
Answered ✓
BlueRainAnimeBlueRainAnime
1
341
kudo(Staff)kudo(Staff)
i can't register for a membership in Help
phonesphonosphonesphonos
1
590
kudo(Staff)kudo(Staff)
Will not let me save with eye parameters in Help
QueenukiQueenuki
2
238
QueenukiQueenuki
Make Deform Path points easier to manipulate in Feature requests
pettankonpettankon
1
427
ueno(staff)ueno(staff)
[Bug] Linked parameters are not always correctly displayed under "Parameter" tab in Help
DennisBirchDennisBirch
1
150
kudo(Staff)kudo(Staff)
Help with Clipping ID in Help
Suchii_OwOSuchii_OwO
1
372
Suchii_OwOSuchii_OwO
Error exporting to moc3 in Help
ScandeinScandein
9
408
GoodguyGastlyGoodguyGastly
Clipping Layers Bleeding Through. in Help
EskeiEskei
1
632
EskeiEskei
Export Problem in Help
YukiraAikoYukiraAiko
1
152
kudo(Staff)kudo(Staff)
Issue with generating Texture Atlas! in Help
Answered
EffieEffie
1
355
kudo(Staff)kudo(Staff)
[Deleted] in Feature requests
DennisBirchDennisBirch
0
29
DennisBirchDennisBirch
Trouble downloading model from server for SDK App in Help
jlee3424jlee3424
1
77
jlee3424jlee3424
Clipped Animated Mesh in General Discussions
Question
MadderPurpMadderPurp
0
69
MadderPurpMadderPurp
Breathing Parameter in Help
ChiefBRadGrantChiefBRadGrant
0
1.4K
ChiefBRadGrantChiefBRadGrant
Any way I can limit my cmo3 file sizes? in Help
ScandeinScandein
0
234
ScandeinScandein
There are no parts folders in Help
lennylenny
2
996
kudo(Staff)kudo(Staff)
Crash 4.1 free in Help
fushigireifushigirei
3
87
kudo(Staff)kudo(Staff)
Import animation from a Json into the animator? in Help
yoowillnsyoowillns
1
197
yoowillnsyoowillns
[Live2d/PRO license] unable to connect to internet(2,-132) issue. How to troubleshoot this issue? in Help
Answered
samsam
1
276
ueno(staff)ueno(staff)
some question to license in Help
sakura_twsakura_tw
2
102
sakura_twsakura_tw
How Can I Change Part Opacity Runtime? in Help
LingLuanLingLuan
0
188
LingLuanLingLuan