Integration Engineering / API Versioning
API Versioning & Lifecycle
Every API eventually needs breaking changes. Without a versioning strategy, each one becomes an outage for a customer or partner. We design versioning, deprecation, and change-management processes so your API can evolve while existing clients keep working.
This Is For You If...
API changes keep breaking mobile apps or partner integrations
You need to make a breaking change and don't know how to roll it out
Old API versions pile up and nobody knows who still uses them
You're launching a public API and want a versioning policy from day one
Which Area Matches Your Need?
Ask Yourself | Points Toward |
Do you have no versioning approach yet? | Versioning Strategy |
Do you need to make a breaking change now? | Breaking Change Rollout |
Are old versions still running? | Deprecation & Sunset |
Do changes break clients unexpectedly? | Contract Testing |
API Versioning Services We Offer
Versioning Strategy
URL, header, or date-based versioning chosen for your clients, with clear rules for what counts as breaking.
Breaking Change Rollout
Parallel versions, adapters, and migration guides so clients move on their own schedule.
Deprecation & Sunset
Usage tracking per version, deprecation headers, client communication, and safe removal.
Contract Testing
Automated tests that catch breaking changes before they reach production.
What We Need From You
What to Share | Why It Helps |
Who consumes the API | Determines how changes must be communicated |
Current versions and usage | Shows what can be retired |
The changes you need to make | Defines the rollout plan |
API gateway or framework | Determines implementation options |
Common Mistakes to Avoid
Instinct | Why It Doesn't Help | Do This Instead |
Changing fields in place | Breaks clients without warning | Add new fields; remove only in new versions |
Versioning every small change | Too many versions to maintain | Version only breaking changes |
Removing versions without usage data | Breaks clients you didn't know about | Track usage per client before sunset |
No written policy | Every change becomes a debate | Publish a versioning and deprecation policy |
How It Works
1. Review
Current API, clients, and change history
2. Define policy
Versioning and deprecation rules
3. Implement
Routing, adapters, and usage tracking
4. Add tests
Contract tests in CI
5. Hand over
Policy docs and a migration guide template
Why Codersarts
We focus on the people and apps using your API, so changes reach them as planned upgrades rather than surprises.
Turnaround Time
A versioning strategy and policy is typically delivered within a few days. Implementation is scoped from your API size.
FAQ
Which versioning style is best?
It depends on your clients; URL versioning is simplest for most public APIs.
How long should old versions live?
Long enough for clients to migrate — we set this from real usage data.
Does this apply to GraphQL?
Yes, through field deprecation rather than versions; see GraphQL API.
Is our project kept confidential?
Yes. Your data, code, and results stay confidential, and an NDA is available on request.
Related Services
Need to Change Your API Without Breaking Clients?
Get a versioning plan everyone can follow.