Release coordination and migrations / Release leads and migration engineers

Decision ledger

Reconcile two releases sharing a migration

Resolve migration identity before either release enters deployment.

A migration number is an identity only when its content and application history agree. Reconcile conflicting releases before either can enter deployment.

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Keep the reason with the decision

Illustrative decision record

Illustrative planning case: Two branches propose the same database migration number with different content.

Decision 01

Canonical 104

Rationale and evidence: Column change owns this identity
Revisit condition: Revisit if already applied differently

Decision 02

Canonical 105

Rationale and evidence: Index follows compatible column state
Revisit condition: Revisit on dependency change

Decision 03

History preserved

Rationale and evidence: Applied digests remain inspectable
Revisit condition: Escalate conflicting recorded content

Decision to make: Resolve migration identity before either release enters deployment.

Compare conflicting files

Owner role · Release investigator

Evidence: Migration numbers and content digests are retained.

Choose canonical sequence

Owner role · Migration engineer

Evidence: Each schema change receives one stable ordered identity.

Verify both upgrade paths

Owner role · Release reviewer

Evidence: Deploying either branch cannot apply conflicting content.

Filled illustrative release coordination record

Invented planning text. Adapt it to your evidence and confirmed owners.

The synthetic branches both contain migration 104: one adds a column and one adds an index. The agreed sequence assigns 104 to the column and 105 to the index, with both branches rebuilt against it. Renaming a file after one version was applied would require a separate reconciliation; the plan does not erase already-recorded migration history.
Decision: Resolve migration identity before either release enters deployment.
Review boundary: Stop if recorded migration history disagrees with file content.
This example uses synthetic conditions. Replace its observations with project evidence and record any changed assumptions before adopting the plan.

Put the outline to work

Compare both migration files, identifiers, content digests and known applied history.
Agree a canonical ordered sequence with unique identities and a compatible dependency boundary.
Validate both supported upgrade paths and escalate any history showing the same identity already applied with different content.

Questions about this workflow

Can one branch simply rename its migration?

Only before application; an already-applied identity must be reconciled against recorded database history.

What proves the branches are aligned?

Both upgrade fixtures produce the same schema and migration ledger from the same starting state.

Does this create tasks in the product?

No. The brief is a manual planning resource. Use the product access link to check onboarding and the workflows available in your account.

From a useful outline to team work

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Use the manual work brief to discuss task ownership, review evidence and next actions in TeamBoost. Release execution remains a separate project workflow; the download performs no deployment or import. Confirm the workflows available in your account before adopting this outline.

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