---
title: "Version pinning"
description: "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 unpinned change, including a vendor's…"
canonical: https://aigovernanceengineer.com/glossary/version-pinning
author: "Jorge García Aibar"
license: "CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)"
doi: https://doi.org/10.5281/zenodo.22956197
version: "0.5.0"
updated: 2026-09-25
---

# 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 unpinned change, including a vendor's model update, is detected and treated as a release.

- Developed in: [ch. 15, Progressive delivery as a control](https://aigovernanceengineer.com/bok/governing-deployment#progressive-delivery-as-a-control); [ch. 05, Pattern: Staged Rollout with Rollback Criteria](https://aigovernanceengineer.com/patterns/staged-rollout-rollback-criteria)
- Chapters: [ch. 05, Patterns](https://aigovernanceengineer.com/bok/patterns) · [ch. 15, Deployment](https://aigovernanceengineer.com/bok/governing-deployment)
- In the glossary chapter: https://aigovernanceengineer.com/bok/glossary#t-version-pinning

## Sources

Defined by this Body of Knowledge: the section it is developed in is the source.