v3.0.0: Reintegration

Marvin 3.0 represents a significant merger of two libraries: marvin and controlflow - re-platformed on pydantic-ai. This combined framework brings together Marvin's user-friendly structured output tools with ControlFlow's powerful agentic engine to create a simple but powerful way to get things done with AI.

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this release contains breaking changes
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What's Changed

New Features 🎉

• Ensure agents plural arg by @jlowin in #1005
• Bump pydantic-ai to 0.0.18 by @jlowin in #1006
• Add usage methods by @jlowin in #1009
• update banner by @zzstoatzz in #1008
• Support in-memory databases by @jlowin in #1012
• Add context kwarg for major fns by @jlowin in #1014
• Handle non-serializable elements of RetryPromptParts by @jlowin in #1015
• marvin.generate: Enforce n in typing by @jlowin in #1016
• Add JSONSchema parser by @jlowin in #1017
• actually ignore extra by @zzstoatzz in #1018
• Update ai-labeler.yml by @jlowin in #1019
• Add marvin.summarize by @jlowin in #1021
• Improve how instructions are provided to high-level fns by @jlowin in #1022
• Add function for generating schemas by @jlowin in #1024
• Add autouse memory by @jlowin in #1027
• typing progress by @zzstoatzz in #1020
• update readme by @zzstoatzz in #1031
• update examples by @zzstoatzz in #1032
• smol by @zzstoatzz in #1033
• resolve merge conflict on 3 by @jlowin in #1041
• totally normal 🪿 server example by @zzstoatzz in #1042
• Add planning by @jlowin in #1046
• Update README.md by @jlowin in #1048
• tweaks by @zzstoatzz in #1050
• Clean up by @jlowin in #1054
• more examples by @zzstoatzz in #1056
• Ensure annotated is properly... annotated by @jlowin in #1057
• Add support for postgres as backing db by @jlowin in #1058
• Add support for base schema in schema generation by @jlowin in #1059
• Improve schema generation by @jlowin in #1060
• Update session generation by @jlowin in #1061

Breaking Changes 🛫

• Move database.py by @jlowin in #1007
• Update readme by @jlowin in #1013
• Memories are async classes by @jlowin in #1026
• Refactor agents/teams/end-turn functions by @jlowin in #1036
• Readme for 3.0 by @jlowin in #1039
• Merge Marvin 3 to main by @jlowin in #1040
• Update README.md by @jlowin in #1044
• Update for pydantic 0.26 by @jlowin in #1062

Docs 📚

• readme tweaks by @zzstoatzz in #1028
• add Marvin docs by @jlowin in #1030

Other Changes 🦾

• add controlflow tool by @zzstoatzz in #991
• xai example by @zzstoatzz in #994
• Introducing Marvin Guru on Gurubase.io by @kursataktas in #992
• redirect twitter by @zzstoatzz in #995
• added check for new user join to chat_endpoint by @biancaines in #993
• Fix bot by @zzstoatzz in #996
• Improve Clarity and Consistency in README by @Anik2812 in #990
• utcnow is deprecated by @zzstoatzz in #999
• Bump turbopuffer from 0.1.15 to 0.1.23 by @dependabot in #998
• doc(README): remove typo by @Chaitanya110703 in #988
• migrate slackbot to pydantic-ai by @zzstoatzz in #1002
• add missing import in example by @zzstoatzz in #1003
• Update database validation by @jlowin in #1011
• Summarize tests by @jlowin in #1023
• AgentDeps -> AgentDepsT by @zzstoatzz in #1034
• deepseek example and typing by @zzstoatzz in #1029
• Delegates by @jlowin in #1037
• Unit test instruction by @jlowin in #1038
• fix typo in README example by @davidgasquez in #1043
• fix typing for embedding_fn in postgres provider by @webcoderz in #1047
• add release CI by @zzstoatzz in #1064
• Create publish-pypi.yml by @jlowin in #1066
• Delete publish-pypi.yml by @jlowin in #1067

New Contributors

• @kursataktas made their first contribution in #992
• @biancaines made their first contribution in #993
• @Anik2812 made their first contribution in #990
• @Chaitanya110703 made their first contribution in #988
• @davidgasquez made their first contribution in #1043
• @webcoderz made their first contribution in #1047

Full Changelog: v2.3.8...v3.0.0

yes the release name is a Severance reference