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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
Complex Warp Deformer Performance Issue (and a tip to avoid it) in Help
pettankonpettankon
3
41
pettankonpettankon
Live2D Cubism - Linux Support in Feature requests
QryosityQryosity
1
42
ookubo(staff) ookubo(staff)
[BUG] Parameter popup window display issue in Live2D Cubism Editor (4K + dual monitor setup) in Help
Answered
Anno_MiaoAnno_Miao
1
21
ookubo(staff) ookubo(staff)
아이폰 없이도 라이브투디 모델 테스트 가능하도록 지원 in Feature Requests
dd07581dd07581
1
40
ookubo(staff) ookubo(staff)
Don't close windows without restoring them in Feature requests
pettankonpettankon
1
30
ookubo(staff) ookubo(staff)
How to get editor to open: Says I'm missing a file in Help
Answered
MintyMinty
2
53
ookubo(staff) ookubo(staff)
Quick question on layer prep workflows in General Discussions
anysplitanysplit
0
20
anysplitanysplit
Whole folder is selected when shift is held in Bug
AlkanimateAlkanimate
1
40
ookubo(staff) ookubo(staff)
Seeking feedback on layer prep tool for Live2D setup in General Discussions
anysplitanysplit
0
50
anysplitanysplit
ERROR-java.lang_.OutOfMemoryError in the log, and exports leave folder empty in Help
natsumeivtnatsumeivt
1
50
KatomonKatomon
Add drawables as an optional part of the CDI3 specification. in Feature requests
AzxianaAzxiana
0
33
AzxianaAzxiana
SDK for Unity Import error (Seems missing rendering material) in Cubism Viewer (for OW, for Unity)
AriAri
1
51
nakayasui(staff)nakayasui(staff)
Cubism SDK 5 R5 URP - TransparentPicking material remains assigned after initialization in Help
ElliceEllice
1
104
yasu.o@live2dyasu.o@live2d
Looking for rigging & animation checklists to audit my workflow (Self-taught, 4 years in Cubism) in Help
Answered ✓
SillyLittleOneSillyLittleOne
3
91
KatomonKatomon
My model turned red how do I fix it back? in Help
Answered
jooreeta_is_a_cookiejooreeta_is_a_cookie
2
291
SillyLittleOneSillyLittleOne
Deformer Window Snaps Back To Top With Hierarchy Changes in Help
QryosityQryosity
2
111
ookubo(staff) ookubo(staff)
Setting to toggle or change "Rotation/Warp Deformer of" prefix for deformer creation in Feature Requests
indigo_choindigo_cho
1
71
ookubo(staff) ookubo(staff)
Positioning for deformers during creation in Feature Requests
indigo_choindigo_cho
1
52
ookubo(staff) ookubo(staff)
Blendshape listed in the Model Parameter CSV in Feature Requests
indigo_choindigo_cho
1
51
ookubo(staff) ookubo(staff)
Keyboard shortcuts for the manual mesh edit area? in Feature requests
RemiFiendRemiFiend
1
62
RemiFiendRemiFiend
Unable to Download the software - 404 not found in Bug
ArunoEuMsmArunoEuMsm
1
52
ookubo(staff) ookubo(staff)
Download Problem in Help
Answered ✓
Perigon360Perigon360
1
62
ookubo(staff) ookubo(staff)
I keep getting this same error, while trying to load a live2d model in Help
Answered
KzOPKzOP
1
91
yasu.o@live2dyasu.o@live2d
A simple and free program for users to replace psd and export textures of live2d model in Feature Requests
AlkanimateAlkanimate
1
51
ookubo(staff) ookubo(staff)
5-r.5 SDK is unusable in Help
holicatholicat
5
211
holicatholicat
Request for RISC-V 32-bit Cubism Core binary — ESP32-P4 embedded AI companion project in Feature requests
cfw2214cfw2214
1
122
yasu.o@live2dyasu.o@live2d
Animation events have no function name in Help
holicatholicat
2
62
yasu.o@live2dyasu.o@live2d
Live2D 5.3 Cubism keeps crashing while doing Manual Mesh Edit in Help
fuyui962fuyui962
2
81
fuyui962fuyui962
Fading settings reset on reimport in Help
holicatholicat
2
52
holicatholicat
Animator Controller reference removed after update in Help
holicatholicat
2
51
holicatholicat