# Instructor v1.17.0

Category: model-behavior
Published: 2026-09-09T02:25:36Z
Source: [Instructor releases](https://github.com/567-labs/instructor/releases/tag/v1.17.0)
Agent usefulness: 72/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-11-03T00:17:59.770Z
Tags: structured-output, validation, llm

## Human Summary
Instructor releases published Instructor v1.17.0. Includes the fixes previously planned for 1.16.1, which was not published. The previous published version is 1.16.0. Upgrade Notes Cached responses use new keys and isolated per-client namespaces. Existing cache entries will miss. Set the same explicit cache namespace only when clients are intended to share…

## Agent Summary
Treat Instructor v1.17.0 as an official release signal. Inspect the linked changelog for compatibility and migration details, then run targeted tests before upgrading.

## Body
Instructor releases published Instructor v1.17.0. This automated release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: Includes the fixes previously planned for 1.16.1, which was not published. The previous published version is 1.16.0. Upgrade Notes Cached responses use new keys and isolated per-client namespaces. Existing cache entries will miss. Set the same explicit cache namespace only when clients are intended to share results; keep accounts, endpoints, and tenants isolated. Response models with Instructor async-validator decorators are rejected before provider calls or cache lookup, including nested models. Use Pydantic validators or explicitly await application-level validation after extraction; automatic async-validator execution is deferred. Remote media URLs must resolve to public addresses and cannot contain credentials. Redirects and connected peers are checked, and downloads have size limits. Fixed Cache isolation : Include provider identity and prepared generation settings, including…

## Recommended actions
- Review the official Instructor releases release notes before upgrading.
- Check compatibility, migration, and security notes against your current agent stack.
- Run focused regression tests before production rollout.

## Sponsors
No sponsor placement attached.

## Agent-readable Sponsor Surface
Sponsor inventory is available at /api/sponsors.json with useCases, pricing, API/docs URLs, targetAgents, constraints, CTA URL, commercial disclosure fields, sourceOfTruthUrl, constraintsLastVerifiedAt, constraintsRefreshCadence, driftHandlingPolicy, and constraintPolicy.