# Instructor v1.15.3

Category: model-behavior
Published: 2026-06-15T05:50:47Z
Source: [Instructor releases](https://github.com/567-labs/instructor/releases/tag/v1.15.3)
Agent usefulness: 82/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-09-19T00:17:44.986Z
Tags: structured-output, validation, llm

## Human Summary
Instructor releases published Instructor v1.15.3. What's Changed fix(templating): skip non-text Parts in GENAI/VertexAI mode by @jxnl in https://github.com/567-labs/instructor/pull/2259 chore(deps): bump the poetry group across 1 directory with 6 updates by @dependabot bot in https://github.com/567-labs/instructor/pull/2258 fix: preserve descriptions in…

## Agent Summary
Treat Instructor v1.15.3 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 v1.15.3. This release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: What's Changed fix(templating): skip non-text Parts in GENAI/VertexAI mode by @jxnl in https://github.com/567-labs/instructor/pull/2259 chore(deps): bump the poetry group across 1 directory with 6 updates by @dependabot bot in https://github.com/567-labs/instructor/pull/2258 fix: preserve descriptions in responses tools mode by @jxnl in https://github.com/567-labs/instructor/pull/2261 test: cover partial streaming for PEP 604 unions by @jxnl in https://github.com/567-labs/instructor/pull/2262 build(docs): use uv for pages deploy by @jxnl in https://github.com/567-labs/instructor/pull/2266 fix(streaming): surface reasoning summary events in RESPONSES TOOLS mode by @ayushh0110 in https://github.com/567-labs/instructor/pull/2299 fix(logging): redact api key and sensitive keys in handle response model debug log by @xodn348 in https://github.com/567-labs/instructor/pull/2297 fix(anthropic):…

## 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.