Forcing your engineering team into a two year feature freeze for a "Big Bang" cloud migration is a great way to watch competitors pass you by. When you freeze releases, you cannot ship customer value and you risk falling behind on evolving compliance requirements like DORA.
Traditional migrations compress all your risk into a single cutover window. We need a better way to modernize without standing still.
Here is how we can escape the migration trap:
- Build isolated, production-like preview environments directly from Git branches.
- Run legacy code against new cloud configurations to catch bugs early.
- Inherit key infrastructure-level compliance controls instead of rebuilding them from scratch.
- Keep shipping features and maintaining operational resilience throughout the entire migration.
By testing every migration step in isolation, you keep your development momentum alive.
Check out the full article to see how preview environments keep your workloads moving.
Bank cloud migration without a feature freeze | Upsun
Escape the big bang migration trap. Learn how financial institutions use preview environments to modernize legacy systems without a feature freeze.
upsun.com
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