# DSPy (dspy) - AgentBreakWatch Reference

> TL;DR Verdict: DSPy (`dspy`) is currently at v3.4.1 on PYPI (published 2026-10-12), with a 90-day Stability Score of 86/100 (B+) and MEDIUM schema drift risk across 4 releases in the last 90 days. DSPy v3.x unifies dspy.LM() with LiteLLM identifiers, removes legacy dspy.OpenAI classes, and updates dspy.ReAct tool wrapping.

## Live Telemetry Metadata
- Canonical Page: https://agentbreakwatch.vercel.app/p/dspy-python
- Category Hub: https://agentbreakwatch.vercel.app/c/agent-sdks (AI Agent SDKs & Frameworks Breaking-Change Index)
- Package Name: `dspy`
- Registry: PYPI (https://pypi.org/project/dspy/)
- GitHub Repository: https://github.com/stanfordnlp/dspy
- Vendor: Stanford NLP
- Latest Live Version: v3.4.1
- Published Date: 2026-10-12T23:07:23.761902Z
- 90-Day Release Count: 4
- Direct Dependencies: 45
- License: MIT License
- Stability Score: 86/100 (Grade B+)
- Schema Drift Risk: MEDIUM
- Recommended Exact Pin Command: `pip install "dspy==3.4.1"`
- Watched Symbols / MCP Tools: dspy.LM, dspy.ReAct, dspy.Tool, dspy.MIPROv2
- Snapshot Timestamp: 2026-10-24T12:11:27.697Z

## Breaking Change & Schema Drift Summary
DSPy v3.x unifies dspy.LM() with LiteLLM identifiers, removes legacy dspy.OpenAI classes, and updates dspy.ReAct tool wrapping.

## Migration Diff: Before (Deprecated / Unpinned Pattern)
```
lm = dspy.OpenAI(model="gpt-4o")
dspy.settings.configure(lm=lm)
```

## Migration Diff: After (Verified v3.4.1 Pattern)
```
lm = dspy.LM("openai/gpt-5")
dspy.configure(lm=lm)
```

## Recent Verified Releases
- v3.4.1 (published 2026-10-12) [LATEST]
- v3.4.0 (published 2026-09-25)
- v3.3.1 (published 2026-08-21)
- v3.3.0 (published 2026-08-03)
- v3.2.1 (published 2026-05-05)
- v3.2.0 (published 2026-04-21)