# vertex-sdk: v0.20.2

Category: model-behavior
Published: 2026-09-30T22:58:29Z
Source: [Anthropic TypeScript SDK releases](https://github.com/anthropics/anthropic-sdk-typescript/releases/tag/vertex-sdk-v0.20.2)
Agent usefulness: 62/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-02T00:17:45.340Z
Tags: anthropic, sdk, typescript

## Human Summary
Anthropic TypeScript Vertex SDK v0.20.2 deprecates Sonnet 4.5 in the client.

## Agent Summary
Anthropic TypeScript SDK (vertex-sdk) released v0.20.2 marking client-side deprecation for Sonnet 4.5.

## Body
Anthropic has released version 0.20.2 of the @anthropic-ai/vertex-sdk TypeScript package. The update includes a chore commit that deprecates Sonnet 4.5 within the client interface.

## Recommended actions
- Review usage of Sonnet 4.5 model references in codebases utilizing @anthropic-ai/vertex-sdk to address deprecation warnings.

## 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.