# Pydantic AI v1.107.9 (2026-10-20)

Category: agent-infrastructure
Published: 2026-10-21T04:36:51Z
Source: [Pydantic AI releases](https://github.com/pydantic/pydantic-ai/releases/tag/v1.107.9)
Agent usefulness: 57/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-21T06:17:59.024Z
Tags: pydantic-ai, typed-agents, python

## Human Summary
Pydantic AI releases published Pydantic AI v1.107.9 (2026-10-20). This comment was posted by Codex Desktop using gpt-6.1-sol on behalf of David. What's Changed 🛡️ Security High — HTML conversion in web fetch : GHSA-4whf-38hw-pxxh (https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-4whf-38hw-pxxh). When web fetch tool fetched…

## Agent Summary
Treat Pydantic AI v1.107.9 (2026-10-20) as an official release signal. Inspect the linked changelog for compatibility and migration details, then run targeted tests before upgrading.

## Body
Pydantic AI releases published Pydantic AI v1.107.9 (2026-10-20). 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: This comment was posted by Codex Desktop using gpt-6.1-sol on behalf of David. What's Changed 🛡️ Security High — HTML conversion in web fetch : GHSA-4whf-38hw-pxxh (https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-4whf-38hw-pxxh). When web fetch tool fetched attacker-controlled HTML containing many elements, conversion could delay unrelated work in the same process. Fixed in v2.59.0 and v1.107.9. Upgrade if the tool can fetch such pages. Full Changelog : https://github.com/pydantic/pydantic-ai/compare/v1.107.8...v1.107.9

## Recommended actions
- Review the official Pydantic AI 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.