Version 5 (v5) of the Auth0 Python SDK, released early Feb 2026, introduces some breaking changes. This article discusses whether version 4 (v4) will continue to be supported.

• Auth0 Python SDK
• Python SDK Support Policy

The recently released v5 of the Auth0 Python SDK is a significant rewrite and introduces some breaking changes. The question may arise as to how long v4 will stay supported.

NOTE: When v4 or lower versions of the Auth0 Python SDK is implemented, running that SDK on a version of Python no longer receiving security updates is not supported as per the support policy schedule. With the release of v5, the support policy schedule mentioned no longer applies. Please refer to the GitHub Repository directly (auth0-python) for further information.

Regarding moving to v5 of the Auth0 Python SDK, the recommendation from the Auth0 SDK maintainers is that v5 will include the latest OpenAPI specification changes and new features. The Auth0 Python SDKs v4 and v5 are fundamentally different codebases so maintaining both releases is operationally difficult, so the recommendation is for customers to plan their migration to v5 as soon as possible.