v0.4.1

This release includes many bugfixes, as well as support for detaching data sources from agents and addition of additional tool providers.

⚒️ Support for Composio, LangChain, and CrewAI tools

We've improve support for external tool providers - you can use external tools (Composio, LangChain, and CrewAI) with:

pip install 'letta[external-tools]'

• Support composio tools (example)
• Add tool-use examples for Langchain tools and CrewAI tools

What's Changed

• fix: patch recall error by @cpacker in #1749
• fix: patch validation error on /messages endpoint by @cpacker in #1750
• feat: add locust for testing user/connection scaling by @sarahwooders in #1742
• ci: disable assistants api workflow by @cpacker in #1752
• fix: server memory leak by @cpacker in #1751
• fix: hotfix for server test by @cpacker in #1753
• fix: cleanup base agent typing on step(), from PR #1700 by @cpacker in #1754
• feat: add support for user_id in header by @cpacker in #1755
• refactor: clean up agent.step() by @cpacker in #1756
• fix: fix DB session management to avoid connection overflow error by @sarahwooders in #1758
• feat: add organization endpoints and schemas by @sarahwooders in #1762
• fix: various fixes to get create agent REST API to work by @cpacker in #1763
• feat: add DEFAULT_USER_ID and DEFAULT_ORG_ID for local usage by @sarahwooders in #1768
• chore: migrate package name to letta by @sarahwooders in #1775
• chore: Update README.md by @cpacker in #1778
• chore: Update README.md by @cpacker in #1779
• fix: fixed bug when existing agent state is loaded via cli by @ShaliniR8 in #1783
• fix: various fixes for workflow tests by @sarahwooders in #1788
• fix: deprecate local embedding tests by @sarahwooders in #1789
• docs: patch readme by @cpacker in #1790
• feat: allow jobs to be filtered by source_id by @sarahwooders in #1786
• feat: support detaching sources from agents by @sarahwooders in #1791
• docs: patch link by @cpacker in #1797
• fix: use JSON schema name instead of tool name for loading from env by @sarahwooders in #1798
• fix: patch typos in notebooks by @cpacker in #1803
• fix: remove usage of anon_clientid and migrate to DEFAULT_USER by @sarahwooders in #1805
• fix: Enable importing LangChain tools with arguments by @mattzh72 in #1807
• feat: don't require tags to be specified for tool creation by @sarahwooders in #1806
• fix: minor patch to tool linking with JSON schema and Tool.name do not match by @sarahwooders in #1802
• docs: update main README by @cpacker in #1804
• feat: add defaults to compose and .env.example by @sarahwooders in #1792
• chore: update static files by @4shub in #1811
• docs: Finish writing example for LangChain tooling by @mattzh72 in #1810
• chore: remove dead function loading code by @sarahwooders in #1795
• fix: Check that content is not None before setting to internal_monologue by @mattzh72 in #1813
• feat: Adapt crewAI to also accept parameterized tools and add example by @mattzh72 in #1817
• fix: remove function overrides for Block object by @sarahwooders in #1816
• feat: add health check route by @4shub in #1822
• feat: Add integration with Composio tools by @mattzh72 in #1820
• fix: Fix small benchmark bugs by @mattzh72 in #1826
• chore: bump version 0.4.1 by @sarahwooders in #1809

New Contributors

• @ShaliniR8 made their first contribution in #1783

Full Changelog: 0.4.0...0.4.1