Versionlane

Customer migrations for API providers

Move your customers
to the next version.

Give them a migration they can inspect, verify in their own environment and review as a draft pull request.

Explore a migration
A structured field of points resolves into separate lanes between versions.

A release is only
the starting line.

Publishing an SDK and a migration guide still leaves application teams with work: finding affected code, changing it, testing it and getting it reviewed.

Versionlane turns that work into a reusable migration package. Your SDK team reviews the scope and distributes invitations. Customer developers get a proposed patch, verification evidence and a pull request they control.

From an import
to a pull request.

A closer look at the Deepgram Python migration.
6.1.1 → 7.0.0

The proposed code change.

This generated-type import moves to its new module. The existing alias and voice settings stay in place.

deepgram-sdk==6.1.1

deepgram-sdk==7.0.0

src/app.pyProposed change
-from deepgram.agent.v1.types.agent_v1settings_agent_speak_one_item import (-    AgentV1SettingsAgentSpeakOneItem as VoiceSettings,-)+from deepgram.types.speak_settings_v1 import SpeakSettingsV1 as VoiceSettings  voice = VoiceSettings(provider={     "type": "deepgram",     "model": "aura-2-asteria-en", })

Check both sides of the change.

Versionlane tests the original and proposed code separately, alongside checks against the real pinned SDKs.

Controlled engineering run
8 October 2026

Verification reportPassed
SDK 6.1.1
7 checks passed
SDK 7.0.0
7 checks passed
Repository baseline
1 test passed
Proposed patch
1 test passed
Execution
Restricted Docker

Ordinary repository CI is a separate step. These checks do not establish production equivalence; edits after verification need fresh checks.

Ready for a developer’s review.

The patch and evidence become a draft pull request. The maintainer runs ordinary checks for its current commit, then accepts or declines it.

Existing human edits are protected.

◌ Draft pull requestExample review

Migrate Deepgram Python
6.1.1 → 7.0.0

Exact dependency update and supported binding edits, with baseline and candidate evidence attached.

  • Inspect the changed lines
  • Run ordinary CI on the current PR commit
  • Mark ready or close through your normal process

Versionlane never merges the PR. A merge is not evidence of deployment.

Code example uses a supported binding. Results are from controlled engineering acceptance; the PR view is a condensed illustration of its draft stage, not live activity.

When a repository doesn’t fit

A clear stop, with a next step.

A declared Python 3.9 deployment cannot use the Deepgram target, which requires Python 3.10+. The runner reports a runtime blocker and creates no migration PR. Update the deployment requirement and preview again.

Other generated types, dynamic access and unsupported repository formats need a different capability or manual work. See the requirements →

Built around the
application team.

Read the customer guide

Tests run on the customer’s laptop or GitHub runner, in restricted containers. Their source code, diffs and test logs stay outside Versionlane’s control service.

Status sharing starts off. Customers can share progress and choose separately whether to include repository or PR links. Providers receive those reports, not an independent account of what ran.

The maintainer inspects the patch, runs the repository’s ordinary checks and decides whether to merge. No automatic approval or merging.

Available migrations.

The early product supports these two Python migrations. Each package has a specific boundary; it is not a general SDK upgrade engine.

deepgram-sdk

6.1.1 7.0.0

Three reviewed generated-type binding changes and the exact SDK dependency update.

Scope and requirements
  • One project with one root requirements.txt and exact public PyPI pins; pytest must be pinned.
  • Deployment Python 3.10+; runner Python 3.11.
  • Committed, clean GitHub checkout; explicit application source paths and nonempty offline pytest tests.
  • Lockfiles, monorepos, private indexes, editable/VCS dependencies and custom builds are unsupported.
  • Other affected generated types, qualified or dynamic access, re-exports and unresolved annotations need manual review.
  • No production API calls or complete integration compatibility.
  • Tests and deployment settings are preserved. No production API calls or deployed-application equivalence are verified.
ce8e0bfbeae4bae3715bc216d0760eef4dd06ebe69282ef0478b5b39fc1615fb

stripe

12.5.1 13.0.0

Four direct exception imports move from stripe.error to stripe; the SDK pin updates exactly.

Scope and requirements
  • One project with one root requirements.txt and exact public PyPI pins; pytest must be pinned.
  • Deployment Python 3.7+; runner Python 3.11.
  • Committed, clean GitHub checkout; explicit application source paths and nonempty offline pytest tests.
  • Lockfiles, monorepos, private indexes, editable/VCS dependencies and custom builds are unsupported.
  • Only direct imports of StripeError, APIError, CardError and InvalidRequestError are supported. Other Stripe imports, clients, resources, HTTP calls, qualified or dynamic access block this package.
  • Stripe 13 also changes the default API version, client namespace and other exports. These changes are not migrated or verified.
  • Exception construction, attributes and catching are checked offline; no API behavior or production equivalence is claimed.
  • Tests and deployment settings are preserved. No production API calls or deployed-application equivalence are verified.
4330b6bb38a3d51974b27ac7bc55fba673179d28a6fbc80468211a7f5f3d5b41

Versionlane-curated packages. Deepgram is not a customer or partner; neither is Stripe. Engineering acceptance is not customer adoption.

Bring the next version
within reach.

Start with the migration. See exactly what a customer receives.

Explore a migration hello@versionlane.com