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3.0.0b4

stanfordnlp/dspy3.0.0b4Aug 11, 2025by okhat

AI Summary

Beta release focusing on MIPRO reliability fixes, Arbor GRPO updates, and adapter improvements (MCP, streaming, BAML).

Key Highlights

  • Fixed MIPRO silent failures on bootstrapping.
  • Updated Arbor GRPO Integration.
  • Faster JSON parsing for images in ChatAdapter.
  • Custom BAMLAdapter for improved structured outputs.

New Features

  • MIPRO bootstrapping fixes.
  • Arbor GRPO update.
  • Faster image JSON parsing.
  • Custom BAMLAdapter.

Full Release Notes

## What's Changed

Optimizers
* Fixes for MIPRO: Don't fail silently on bootstrapping! by @okhat in https://github.com/stanfordnlp/dspy/pull/8548
* skip unhashable module histories for mipro program proposer by @arnavsinghvi11 in https://github.com/stanfordnlp/dspy/pull/8572
* Update Arbor GRPO Integration by @Ziems in https://github.com/stanfordnlp/dspy/pull/8609
* Remove user confirmation from MiproV2 by @TomeHirata in https://github.com/stanfordnlp/dspy/pull/8552

Adapters & Tools
* fix(dspy): Fix MCP tool conversion when schema has no input params by @tvdaptible in https://github.com/stanfordnlp/dspy/pull/8566
* Explicitly mark the end of streaming by @chenmoneygithub in https://github.com/stanfordnlp/dspy/pull/8587
* faster json parsing for images in chatadapter by @jmhb0 in https://github.com/stanfordnlp/dspy/pull/8596
* Use json mode for serialization by @TomeHirata in https://github.com/stanfordnlp/dspy/pull/8605
* Custom BAMLAdapter to improve structured outputs by @prrao87 in https://github.com/stanfordnlp/dspy/pull/8614

LMs & Modules
* Mark gpt-5 as reasoning model by @olesyash in https://github.com/stanfordnlp/dspy/pull/8620
* Fix infinite growing trace and add tests by @chenmoneygithub in https://github.com/stanfordnlp/dspy/pull/8607
* Litellm logging management by @chenmoneygithub in https://github.com/stanfordnlp/dspy/pull/8619
* nit: fix "poorly-design" by @danielsparing in https://github.com/stanfordnlp/dspy/pull/8622
* remove history and callbacks from module saving by @arnavsinghvi11 in https://github.com/stanfordnlp/dspy/pull/8599
* update deduplicate by @apieum in https://github.com/stanfordnlp/dspy/pull/8623

Maintenance
* Increment python version for pre-commit by @TomeHirata in https://github.com/stanfordnlp/dspy/pull/8602
* Run the `typos` tool against the codebase by @kurtmckee in https://github.com/stanfordnlp/dspy/pull/8560
* Fix incorrect `build-system` requirements by @kurtmckee in https://github.com/stanfordnlp/dspy/pull/8558
* Vendor Hasher class from datasets library in order to remove larger dependency by @BenMcH in https://github.com/stanfordnlp/dspy/pull/8621


## New Contributors
* @weklund made their first contribution in https://github.com/stanfordnlp/dspy/pull/8554
* @vakinapalli made their first contribution in https://github.com/stanfordnlp/dspy/pull/8569
* @tvdaptible made their first contribution in https://github.com/stanfordnlp/dspy/pull/8566
* @jmhb0 made their first contribution in https://github.com/stanfordnlp/dspy/pull/8596
* @olesyash made their first contribution in https://github.com/stanfordnlp/dspy/pull/8620
* @kurtmckee made their first contribution in https://github.com/stanfordnlp/dspy/pull/8560
* @prrao87 made their first contribution in https://github.com/stanfordnlp/dspy/pull/8614
* @danielsparing made their first contribution in https://github.com/stanfordnlp/dspy/pull/8622
* @apieum made their first contribution in https://github.com/stanfordnlp/dspy/pull/8623

**Full Changelog**: https://github.com/stanfordnlp/dspy/compare/3.0.0b3...3.0.0b4