●Change8

Migrating to Chroma 1.5.3

Version 1.5.3 introduces 1 breaking change. This guide details how to update your code.

Released: 3/7/2026

1
Breaking Changes
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Migration Steps
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Affected Symbols

⚠️ Check Your Code

If you use any of these symbols, you need to read this guide:

pydantic.v1

Breaking Changes

●Issue #1

Dropped pydantic v1 compatibility layer. Users relying on pydantic v1 models or configurations must migrate to pydantic v2 syntax.

Migration Steps

  1. 1
    Migrate any usage of pydantic v1 models or configurations to pydantic v2 syntax, as v1 compatibility layer has been removed to support Python 3.14.

Release Summary

Version 1.5.3 removes the pydantic v1 compatibility layer, enabling Python 3.14 support, and introduces numerous performance enhancements, especially around log fetching and compaction endpoints.

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View the full release notes and all changes for Chroma 1.5.3.

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