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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
5, -1005 Error on my old account in Help
seleneveeayeseleneveeaye
3
41
Enoko(Staff)Enoko(Staff)
Feature Request: Extend BlendShape Weight Range to -100% in Feature requests
Tea_conTea_con
1
51
ookubo(staff) ookubo(staff)
Fail to export model to moc3 file in Help
Answered
GagaliliGagalili
3
167
KatomonKatomon
I can't export to moc3 file in Help
Answered
Teddy_TurleTeddy_Turle
5
134
KatomonKatomon
Crash on startup with EXCEPTION_ACCESS_VIOLATION in OpenCL.dll - Unable to run Live2D Cubism in Help
j955229j955229
5
165
ookubo(staff) ookubo(staff)
Got a new PC: Now Live2d Freezes up my whole PC in Help
Answered
LumeliaLumelia
2
83
LumeliaLumelia
Out of memory, the .bat doesn't work in Help
Papercut40Papercut40
2
61
KatomonKatomon
My live2d can't be opened in Help
Answered
Kagaii05Kagaii05
1
104
ookubo(staff) ookubo(staff)
unable to purchase the license in Bug
theegusttheegust
1
146
ookubo(staff) ookubo(staff)
Payment issues purchasing annual license in Help
itssweetandyummmmmitssweetandyummmmm
4
566
ookubo(staff) ookubo(staff)
YEN to PHP wasn't applied? in Help
mimiqmimiq
1
52
ookubo(staff) ookubo(staff)
Severe lag in big projects in the editor in Help
HitomiHoshinoHitomiHoshino
3
278
KatomonKatomon
Simplified abstraction layers for Web SDK in Feature Requests
Ran_THRan_TH
1
41
nakayasui(staff)nakayasui(staff)
Add ability to align temporary deform tool when align the bounding box. in Feature requests
EstEarth202EstEarth202
1
55
ookubo(staff) ookubo(staff)
Add "Lock Default Form" as button in palette in Feature requests
Ran_THRan_TH
1
52
ookubo(staff) ookubo(staff)
I have an error message in the logs I can't decipher and the model won't export in Help
PhoenixatherPhoenixather
2
144
PhoenixatherPhoenixather
Automesh bugs - please help! in Help
niftysawusniftysawus
3
145
KatomonKatomon
My Past Discussion Disappearred in Help
jimmykumajimmykuma
4
81
jimmykumajimmykuma
1
Up
Announcement regarding Cubism Editor 5.3 in Reporting bugs about new features/Feedback
Active
Tak.W(Staff)Tak.W(Staff)
1
292
namgaunnamgaun
Reflect motion is not avaliable in the updated Live2D (Live2D 5.2.03) in Help
REfan0213REfan0213
3
1K
ookubo(staff) ookubo(staff)
CPU spiking repeatedly in Physics window in 5.0 in Help
cilliacillia
21
1.5K
Enoko(Staff)Enoko(Staff)
Model file is too big, can’t export in Help
Answered
kyoko_nyakyoko_nya
3
269
ookubo(staff) ookubo(staff)
Auto-Adjust Animation Window to Match Model Canvas Size in Feature requests
indigo_choindigo_cho
3
164
indigo_choindigo_cho
Allow Brush Size to Be Assigned to Hotkeys (Like Photoshop & Clip Studio Paint) in Feature requests
indigo_choindigo_cho
1
95
ookubo(staff) ookubo(staff)
"Thread-595" kotlin.NotImplementedError in Help
DeerTrashDeerTrash
1
22
ookubo(staff) ookubo(staff)
Some textures are blurry but atlas is at 100% in Help
CamelliavtCamelliavt
0
24
CamelliavtCamelliavt
Pendulum flicker in Bug
opalukopaluk
1
12
ookubo(staff) ookubo(staff)
Bug with 5.2 in Help
hanakosumirehanakosumire
16
651
ookubo(staff) ookubo(staff)
Normal And Reverse Masks On One Artmesh in Feature Requests
MadetreMadetre
1
146
ookubo(staff) ookubo(staff)
Dependence of physics on parameters in Help
JekSun97JekSun97
1
31
ookubo(staff) ookubo(staff)