Migration Sprint

Upgrade the system without letting the migration swallow the roadmap.

Backlog Busted turns a risky upgrade into a bounded engineering sprint: baseline first, target defined, implementation isolated, tests rerun, and the final diff independently reviewed.

Good fit

Repeatable upgrades with a clear before and after.

Runtime upgrades

Python, Node, language/runtime version changes, compatibility fixes, and build updates.

Framework migrations

Incremental moves between supported framework versions with tests and documented breakage.

Dependency modernization

Outdated packages, lockfile refreshes, deprecations, and compatibility cleanup.

CI / API migrations

Workflow changes, SDK replacements, API version updates, and integration transitions.

Migration preflight

First we prove what is already true.

A migration should not get blamed for failures that already existed, and it should not quietly pull unrelated cleanup into scope.

01

Inventory

Read manifests, lockfiles, CI configuration, runtime pins, build scripts, migration notes, and relevant repository guidance.

02

Baseline

Run the existing supported test/build path where practical and record pre-existing failures separately.

03

Target

Define the exact target version or replacement and the acceptance criteria that prove the migration is complete.

04

Boundary

Separate required compatibility work from optional refactors, cleanup, and future modernization.

How the lanes are used

One lane migrates. Another challenges the result.

Implementation lane

Receives the exact migration target, baseline evidence, approved compatibility scope, and test/build commands. It updates only what is required to satisfy that brief.

Review + bounce

A separate review checks for accidental broad refactors, missing upgrade steps, test regressions, unsupported versions, and scope drift. Findings go back through the repair loop.

Founding pilot

Start with a migration slice.

A good free pilot is a bounded upgrade or compatibility slice that can be completed and reviewed without turning into a multi-month platform rewrite.

Strong first candidates

  • One runtime or framework step
  • One SDK/API version migration
  • One CI workflow migration
  • A bounded dependency compatibility set
See how onboarding works