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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
Severe UI lag on Mac in Help
LMoLMo
2
155
obsidianobsidian
ERROR "Your order has not been completed Credit card information is not appropriate." in Help
WinWin
1
540
ookubo(staff) ookubo(staff)
Hey is there a support email for the devs cause I wanted to ask something and need to show a video in Help
ItsactuallyTeaDItsactuallyTeaD
1
43
ookubo(staff) ookubo(staff)
Commandline Tool for Exporting models in Other Live2D Products and Tools (Other Photoshop Scripts, Sample Data, etc.)
Answered
TheMasterofBlubbTheMasterofBlubb
1
85
ookubo(staff) ookubo(staff)
5.0 beta UI Upscale causes sever fps drop from high res monitors in physics window in Help
indigo_choindigo_cho
18
1.7K
LMoLMo
Worse performance on 5.0 compared to 4.2 in Help
KetKet
8
1.2K
LMoLMo
I reset my windows before deactivating the license in Help
Answered
Cool_BatCool_Bat
3
98
ookubo(staff) ookubo(staff)
[Download]Cubism SDK for Unreal Engine R1 alpha3 in Download
Closed
Tak.W(Staff)Tak.W(Staff)
0
162
Tak.W(Staff)Tak.W(Staff)
Cannot dowoload newest version in Help
Answered ✓
KamiletKamilet
1
32
ookubo(staff) ookubo(staff)
Art not reflecting in Help
JustAGirlJustAGirl
0
12
JustAGirlJustAGirl
Art Not Reflecting in Help
emsy_wayemsy_way
2
878
JustAGirlJustAGirl
How do i change to the pro trial version in Help
artfurretartfurret
1
97
ookubo(staff) ookubo(staff)
Live2D will not open unless I use the BAT file. How to fix and open with EXE file? in Help
MallowMallow
1
101
ookubo(staff) ookubo(staff)
Synchronize corner improvement + Save param values to a slot in Feature requests
Ran_THRan_TH
1
31
ookubo(staff) ookubo(staff)
I can't use auto mesh generator in Help
wwwwww
1
87
ookubo(staff) ookubo(staff)
Mesh distorts art when made in Help
EnananEnanan
1
32
ookubo(staff) ookubo(staff)
Stroke to mesh sensitivity/auto adjustment fix in Feature requests
LithmarielLithmariel
4
142
ookubo(staff) ookubo(staff)
Can't replace psd file? in Help
igneuxigneux
1
161
ookubo(staff) ookubo(staff)
Please adjust the interface sizing better in Feature requests
LithmarielLithmariel
2
24
ookubo(staff) ookubo(staff)
Way too much empty space in Warp inspector settings in Help
Ran_THRan_TH
1
22
ookubo(staff) ookubo(staff)
Can't export model as a moc3 file in Help
Answered
trupirtrupir
3
328
TigerCookieCatTigerCookieCat
I suddenly cannot make Deformer & Auto Mesh in Help
AsoylentAsoylent
4
636
ookubo(staff) ookubo(staff)
Edit glue in solo mode in Feature requests
LithmarielLithmariel
3
114
ookubo(staff) ookubo(staff)
Live2D pageview switch with in flutter andorid in Help
ldcyesldcyes
6
817
ookubo(staff) ookubo(staff)
A list of effected items for the warning "Selected target version does not support Blend Shape..." in Feature requests
KuroamaKuroama
1
67
ookubo(staff) ookubo(staff)
Augmentation doesn't work properly in Help
saki_fuwusaki_fuwu
1
118
ookubo(staff) ookubo(staff)
why can't i import my psd file in live2d? in Help
Answered
marimari
1
187
ookubo(staff) ookubo(staff)
Can't save my FILE "java.lang.outofmemoryerror java heap space" in Help
WinWin
1
74
ookubo(staff) ookubo(staff)
Failed to output (-1829442904) in Help
lumineyluminey
1
151
ookubo(staff) ookubo(staff)
Live2D don't work anymore in Help
JYamadaJYamada
1
144
ueno(staff)ueno(staff)