Planning the migration: API version discipline
Why this deserves attention
API versions influence behaviour and should move through the estate as a managed engineering decision. The important work is to turn the assumption into a visible decision.
Long-lived version drift hides deprecated behaviour and creates inconsistent results across classes and integrations. On 1 March 2026, this archive entry records the principle as a practical design concern rather than a product announcement.
Control the transition
Look at api version discipline through how to move from the current state without losing service or trusted information. The objective is not to introduce more process; it is to expose the few decisions that determine reliability, ownership and future change.
Inventory versions, test upgrades in bounded groups and include version posture in technical-debt planning. Record the decision close to the solution so that delivery, support and future architecture reviews work from the same intent.
What good looks like
The codebase benefits from platform evolution without forcing risky, all-at-once upgrades. The team can describe the expected behaviour, the owner, the evidence of success and the response when reality differs from the design.
A useful next step is to review one live implementation against this principle, identify the largest unowned assumption and turn it into a bounded improvement with a measurable outcome.
Official reference
Salesforce Apex Developer Guide