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Blue-green deployment

By Updated

Two identical production environments with traffic switched between them, so a release can be rolled back by switching back 1. It gives an AI system a tested, instant path to the previous version.

Developed in
ch. 15, Progressive delivery as a control
ch. 05, Pattern: Staged Rollout with Rollback Criteria
Chapters
ch. 05, Patterns · ch. 15, Deployment
Contrast with
Canary release
Source
1 numbered reference, listed below

Where it is used

The term is not used under this name in running prose; the sections listed under "Developed in" treat it.

Blue-green deployment: related terms and patternsThe term at the centre; related terms on solid edges, the terms it is contrasted with on dashed edges, and the patterns that use it most in the colour of their layer.RelatedContrastBlue-green deploymentRelated terms (5)AI system · RelatedAI systemProgressive delivery · RelatedProgressive deliveryRollback criteria · RelatedRollback criteriaShadow deployment · RelatedShadow deploymentVersion pinning · RelatedVersion pinningContrast with (1)Canary release · ContrastCanary release
Blue-green deployment: related terms and patternsThe term at the centre; related terms on solid edges, the terms it is contrasted with on dashed edges, and the patterns that use it most in the colour of their layer.RelatedContrastRelated terms (5)AI system · RelatedAI systemProgressive delivery · RelatedProgressive deliveryRollback criteria · RelatedRollback criteriaShadow deployment · RelatedShadow deploymentVersion pinning · RelatedVersion pinningContrast with (1)Canary release · ContrastCanary releaseBlue-greendeployment
The term's neighbourhood Terms related to this one on solid edges, terms it is often confused with on dashed edges, and the patterns that use it most in the colour of their layer. Follow a dashed edge to check the distinction before you use either term.
Neighbourhood as a table
Neighbourhood of Blue-green deployment
FamilyItemRelation
Related termsAI systemRelated
Related termsProgressive deliveryRelated
Related termsRollback criteriaRelated
Related termsShadow deploymentRelated
Related termsVersion pinningRelated
Contrast withCanary releaseContrast
  • Progressive delivery

    Releasing a change to a small, growing share of real traffic in stages (shadow, pilot, canary, general availability), each with rollback criteria registered…

  • Rollback criteria

    The conditions, written into the rollout plan before a release stage starts, under which the pipeline returns to the previous version automatically: a floor…

  • Shadow deployment

    A release stage in which a new model or system receives live inputs but its outputs are not used, so its behaviour on real traffic can be compared with the…

  • Version pinning

    Fixing, in the registry entry, the exact versions of the model, prompts, retrieval corpus and guardrails a deployed system uses, so what ran is known and any…

  • AI system

    For governance, the object the AI definition brings into scope.

Sources

  1. [1] "BlueGreenDeployment" (two identical production environments; switch back on failure). Martin Fowler. 2010-03-01. https://martinfowler.com/bliki/BlueGreenDeployment.html (verified: primary)

Definitions of legal terms paraphrase the cited text, which governs. Dated statements are as of .

Cite this term

García Aibar, J. (2026). Blue-green deployment. In AI Governance Engineering: The Thesis & Body of Knowledge (v0.5.0), Glossary. https://doi.org/10.5281/zenodo.22956197. https://aigovernanceengineer.com/glossary/blue-green-deployment. CC BY 4.0

BibTeX

@misc{aige2026bluegreendeployment,
  author  = {Jorge García Aibar},
  title   = {{Blue-green deployment}},
  note    = {Glossary, AI Governance Engineering: The Thesis \& Body of Knowledge, version 0.5.0},
  year    = {2026},
  doi     = {10.5281/zenodo.22956197},
  url     = {https://aigovernanceengineer.com/glossary/blue-green-deployment}
}