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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
Feature request: Proportional resizing in Feature requests
argamawitchargamawitch
1
43
ookubo(staff) ookubo(staff)
Feature request: Gravity Tool in Feature requests
argamawitchargamawitch
1
21
ookubo(staff) ookubo(staff)
Feature request: Locking Mesh to mesh in Feature requests
argamawitchargamawitch
1
43
ookubo(staff) ookubo(staff)
live2d 튜토리얼영상 추가 in Feature requests
dd07581dd07581
1
32
ookubo(staff) ookubo(staff)
Model wont export in Help
beesbeesbeesbeesbeesbeesbeesbees
3
82
KatomonKatomon
texture atlas is not opening in Bug
Answered
EchorinPEchorinP
1
33
ookubo(staff) ookubo(staff)
Unable to download Cubism Editor — server connection error in Help
Answered ✓
MeowwseMeowwse
7
257
ookubo(staff) ookubo(staff)
Deformer unintended snapping in Help
indigo_choindigo_cho
14
412
ookubo(staff) ookubo(staff)
I can't open live2d, it just gives me a white screen in Help
CeniaranaraCeniaranara
1
52
ookubo(staff) ookubo(staff)
I can't open Live 2D in Help
littlekaiserlittlekaiser
5
112
KatomonKatomon
The deformer / mesh vertices move along the X and Y axes of the rotated canvas. in Feature requests
miyanoillismiyanoillis
3
111
ookubo(staff) ookubo(staff)
Membership registration is not complete in Help
Answered
chanunchanun
1
31
ookubo(staff) ookubo(staff)
In version 5.0, exporting to moc3 results in a blurry mouth in VTube Studio in General Discussions
Answered
liuyeiliuyei
1
102
ookubo(staff) ookubo(staff)
Strip incompatible characters from ID on PSD import in Feature requests
Ran_THRan_TH
1
41
ookubo(staff) ookubo(staff)
Payment not completed in Help
IzelIzel
1
32
ookubo(staff) ookubo(staff)
Can only open one specific file in Help
Answered
_chajok__chajok_
1
53
ookubo(staff) ookubo(staff)
When I copy and paste a mesh it does not paste in the same spot in Bug
DizziepawsDizziepaws
1
51
ookubo(staff) ookubo(staff)
Glue feature for deformers and a more precise glue weight input in Feature requests
CyMationsCyMations
2
71
ookubo(staff) ookubo(staff)
Collapsible info-popups in Feature requests
LemonadeLemonade
1
61
ookubo(staff) ookubo(staff)
How Do I Optimize a Live2D Model? in Help
mystirymystiry
2
114
mystirymystiry
Import Physics Without Overwriting Existing Physics Groups in Feature requests
Tea_conTea_con
3
102
ookubo(staff) ookubo(staff)
Texture Atlas not opening in Help
Answered
163iromi163iromi
3
191
ookubo(staff) ookubo(staff)
Unable to Paste Partially Copied Mesh Between ArtMeshes in 5.3.02 beta1 in Help
Tea_conTea_con
1
72
ookubo(staff) ookubo(staff)
Memory Leaks in Cubism 5.3 in Help
mystirymystiry
1
64
KatomonKatomon
Issue with blending modes import in 5.3 in Help
Ran_THRan_TH
3
111
Enoko(Staff)Enoko(Staff)
[Bug] Multi-select click not responding in "Project Tab" Live2D Cubism 5.3 in Help
Tea_conTea_con
2
87
Enoko(Staff)Enoko(Staff)
Alt+Scroll Zoom problem in Help
SFINKSFINK
1
63
ookubo(staff) ookubo(staff)
Pendulum not visible 5.2 in Help
risu_Chuurisu_Chuu
4
434
ookubo(staff) ookubo(staff)
Lock parameters in animator -- Loop editing support overrides animated Repeat parameters in Feature requests
dochanheedochanhee
1
41
ookubo(staff) ookubo(staff)
SDK for Unreal Engine，在ue5.5.4无法使用 in Help
haodehaode
13
251
Tak.W(Staff)Tak.W(Staff)