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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
Instantiate prefab loos motion smothness. in Help
Answered ✓
longbeardedlongbearded
2
181
longbeardedlongbearded
It won't let me make a Texture Atlas? in Help
Sly_AtlaSly_Atla
0
128
Sly_AtlaSly_Atla
Change name for texture_00 in Help
Alukard99Alukard99
1
88
Enoko(Staff)Enoko(Staff)
Help,, java updated and can't open model in Help
dun04045dun04045
1
108
Enoko(Staff)Enoko(Staff)
😢 someone help me please in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
meirskaslanameirskaslana
1
127
Enoko(Staff)Enoko(Staff)
Java heap space problem in Help
KeshiiKeshii
8
1.4K
KeshiiKeshii
Green Deformer Grid/Box Disappeared in Help
harotoraharotora
1
266
harotoraharotora
Parameter invalidation after export in Help
Question
VonnoVonno
0
37
VonnoVonno
How to Export Model with Animation in Help
Question
LusteriousLusterious
0
129
LusteriousLusterious
Making model independend from Time.timeScale in Help
NyankoNyanko
1
52
yasu.o@live2dyasu.o@live2d
Making model independent from Time.timeScale in Help
NyankoNyanko
0
61
NyankoNyanko
Moved: Making model independent from Time.timeScale in Help
Closed
Tak.W(Staff)Tak.W(Staff)
0
1
Tak.W(Staff)Tak.W(Staff)
안녕하세요, 질문이 있습니다! 도와주세요ㅠ in Feature requests
Answered
luciolucio
1
335
Enoko(Staff)Enoko(Staff)
How do I remove only the incorrectly selected part of the keyform? in Help
Question
mgdfawrmgdfawr
0
64
mgdfawrmgdfawr
Error with adding -2 value in Keyform in Help
SilariaSilaria
0
56
SilariaSilaria
Can't Export Moc3 (Blendshapes Problem?) in Help
luckybeansluckybeans
5
271
Enoko(Staff)Enoko(Staff)
validate placement upgrade in Feature requests
anzeloanzelo
4
168
anzeloanzelo
Updates on the Custom Action Launcher in Feature requests
CrunchyCrunchy
1
73
Enoko(Staff)Enoko(Staff)
Reflect motion from center of warp deformer in Feature requests
QryosityQryosity
1
1.2K
Enoko(Staff)Enoko(Staff)
search and replace in Feature requests
harotoraharotora
1
43
Enoko(Staff)Enoko(Staff)
HELP! L2D RAISE RAM n CPU crazy to 100% when save! Is was 15% before click save in Help
OnionUmeOnionUme
1
122
Enoko(Staff)Enoko(Staff)
Additional Options for CSV Parameter Export/Import in Feature requests
CrunchyCrunchy
1
125
Enoko(Staff)Enoko(Staff)
Apple Motion Plugin! in Feature requests
LMoLMo
1
64
Enoko(Staff)Enoko(Staff)
Cubism SDK for unity r.6 can not work with Unity on Apple Silicon in Help
woc2006woc2006
3
888
woc2006woc2006
Moved: Cubism SDK for unity r.6 can not work with Unity on Apple Silicon in Help
Closed
Tak.W(Staff)Tak.W(Staff)
0
1
Tak.W(Staff)Tak.W(Staff)
Unknown Live2d fps slowdown under certain conditions. in Help
KuroamaKuroama
0
88
KuroamaKuroama
Keyframes Bugging out in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
Aidenite98Aidenite98
0
29
Aidenite98Aidenite98
Memory and CPU usage increase when saving and when working on model in Help
Answered
SweetieEliseSweetieElise
5
1K
OnionUmeOnionUme
Cubism Delete Atalas in Help
Alukard99Alukard99
1
48
Enoko(Staff)Enoko(Staff)
One Texture Atlas in two model. in Help
Alukard99Alukard99
0
47
Alukard99Alukard99