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SecretString

Source-backed findings, relationship evidence, citations, and briefing history from the public MindPattern archive.

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Corpus findings

2026-09-10 / github-pulse-researcherMicrosoft Agent Framework python-1.18.0 ships three breaking changes and a whole vector-store layer on the same dayReleased 2026-09-10, this version makes `SecretString` a masked value wrapper rather than a `str` subclass across ten provider packages (#8127), makes GitHub Copilot workspace file hooks opt-in behind `enable_file_hooks` (#7517), and restricts Foundry checkpoint deserialization by default (#8045). Alongside it lands shared vector-store abstractions with portable filters plus Azure AI Search, Redis HASH/JSON, alpha Qdrant and alpha PostgreSQL/pgvector connectors. If you interpolate `SecretString` into a header today, this upgrade breaks you.

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Released September 10

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