Trillium (R2 2025) Upgrade plan

Trillium (R2 2025) Upgrade plan

Create/validate and update documents for new versions of applications
Update platform-complete with new versions of modules
Update configuration branches with new ENV variables
Create new branch for platform-lsp
Update package.json for UI builds
DB snapshot before migration
Disable and remove all applications from all tenants
Register new applications on cluster
Update management components
Update backend modules
Rebuild UI’s (without eureka)
FSE AQA validation
Run marc migrations (instances and authorities) ? Do we need that step
Reindex
Create RDS db snapshot
Change tenant DNS (w/o ‘eureka’)