Customer.io SDK versions.
The Customer.io packages Versyka recognizes on npm and PyPI, their latest releases, and where the breaking changes are documented. Monitoring checks connected repositories against these every day.
Packages we track
| Package | Registry | Latest | Status | Release notes |
|---|---|---|---|---|
customerio-node | npm | 5.4.0 | Maintained | View → |
customerio | PyPI | 3.2.0 | Maintained | View → |
Latest versions from the public npm and PyPI registries, checked and refreshed daily.
Customer.io SDK questions
What is the latest version of the Customer.io SDK?
As of 2026-10-26: customerio-node 5.4.0 on npm; customerio 3.2.0 on PyPI.
Versions come from the public registries and are refreshed every day.
How do I upgrade the Customer.io SDK without breaking my code?
Read the release notes for every major version between yours and the latest, update each call that changed, then run your typecheck, build and tests.
- Versyka's free upgrade check shows which Customer.io packages in your package.json or requirements.txt are major versions behind, with the release notes.
- Versyka can do the upgrade for you: it finds every affected Customer.io call, rewrites it, runs your own tests and opens a pull request only if they pass.
Does Versyka monitor Customer.io SDKs?
Yes. Versyka recognizes customerio-node (npm), customerio (PyPI) in connected repositories and flags them every day when they fall a major version behind or are deprecated.
Behind on Customer.io?
Versyka finds every affected Customer.io call in your code, rewrites it, runs your tests and opens a pull request.