Eclipse ModernGoon

https://projects.eclipse.org/projects/tools.gef/downloads

Update Sites: 

GEF 3.x / Zest 1.x Releases:

GEF 3.x / Zest 1.x Milestones:

GEF 3.x / Zest 1.x Integration:

GEF 3.x / Zest 1.x Master CI:

GEF 3.x / Zest 1.x Maintenance CI:

GEF4 Milestones:

GEF4 Integration:

GEF4 Master CI:

https://hudson.eclipse.org/hudson/job/gef4-master/lastSuccessfulBuild/artifact/update-site