Timetable

Flux v1 to v2 migration and support timetable.

💖 Flux Migration Commitment

This public timetable clarifies our commitment to end users. Its purpose is to help improve your experience in deciding how and when to plan infra decisions related to Flux versions. Please refer to the Roadmap for additional details.

Date	Flux 1	Flux 2 CLI	GOTK¹
Oct 6, 2020	Maintenance Mode Flux 1 releases only include critical bug fixes (which don’t require changing Flux 1 architecture), and security patches (for OS packages, Go runtime, and kubectl). No new features Existing projects encouraged to test migration to Flux 2 pre-releases in non-production	Development Mode Working to finish parity with Flux 1 New projects encouraged to test Flux 2 pre-releases in non-production	All Alpha²
Feb 18, 2021	Partial Migration Mode Existing projects encouraged to migrate to `v1beta1`/`v2beta1` if you only use those features (Flux 1 read-only mode, and Helm Operator) Existing projects encouraged to test image automation Alpha in non-production	Feature Parity	Image Automation Alpha. All others reached Feature Parity, Beta
June 30, 2021	Superseded All existing projects encouraged to migrate to Flux 2, and report any bugs Flux 1 Helm Operator code freeze – no further updates except CVEs	Needs further testing, may get breaking changes CLI needs further user testing during this migration period	All Beta, Production Ready³ All Flux 1 features stable and supported in Flux 2 Promoting Alpha versions to Beta makes this Production Ready
TBD	Migration and security support only Flux 1 releases only include security patches (no bug fixes) Maintainers support users with migration to Flux 2 only, no longer with Flux 1 issues Flux 1 archive date announced	Public release (GA), Production Ready CLI commits to backwards compatibility moving forward CLI follows kubectl style backwards compatibility support: +1 -1 MINOR version for server components (e.g., APIs, Controllers, validation webhooks)	All Beta, Production Ready
TBD	Archived Flux 1 obsolete, no further releases or maintainer support Flux 1 repo archived	Continued active development	Continued active development

GOTK is shorthand for the GitOps Toolkit APIs and Controllers ↩︎
Versioning: Flux 2 is a multi-service architecture, so requires a more complex explanation than Flux 1:
- Flux 2 CLI follows Semantic Versioning scheme
- The GitOps Toolkit APIs follow the Kubernetes API versioning pattern. See Roadmap for component versions.
- These are coordinated for cross-compatibility: For each Flux 2 CLI tag, CLI and GOTK versions are end-to-end tested together, so you may safely upgrade from one MINOR/PATCH version to another.
↩︎
The GOTK Custom Resource Definitions which are at v1beta1 and v2beta1 and their controllers are considered stable and production ready. Going forward, breaking changes to the beta CRDs will be accompanied by a conversion mechanism. ↩︎

Last modified 2022-03-23: cleanup: fix some more links, including old toolkit.f.i (9c4092d)