October 2025 Summaries

Py AI is launching a series of events aimed at bringing together Python and AI enthusiasts, featuring lightning talks, live demos, and networking opportunities. The meetups will begin in San Francisco on November 11th, New York on November 21st, and London on December 16th, with a conference planned for early 2026. Guests include notable figures such as Samuel Colvin of Pydantic and others from FastMCP and SentinelOne, who will discuss topics ranging from document processing to orchestrating AI workflows. These events are designed for Python developers working with AI frameworks, agentic systems, and distributed compute infrastructure, offering practical insights rather than theoretical discussions. Each meetup will last 2 to 3 hours, and while attendance is free, registration is required. Talks will not be recorded, and attendees are encouraged to participate in person to engage in discussions and networking. A call for proposals for the upcoming conference will open soon, and interested individuals are encouraged to subscribe to updates through the Luma calendar.

Pydantic v2.12 has been released, featuring contributions from over 20 external developers and introducing several notable updates, including initial support for Python 3.14. This version includes a range of enhancements, such as a new MISSING sentinel to differentiate between default and provided values, support for PEP 728 to handle TypedDict with extra items, and an option to preserve empty URL paths. Additionally, the release addresses timestamp validation, introduces the exclude_if field option, and allows for JSON serialization with non-ASCII characters. Minor changes include resolving compatibility issues with pydantic-core, altering FieldInfo class behavior, and unifying the serialize_as_any functionality. The update also affects JSON Schema generation and introduces deprecation warnings for certain class method validators, alongside narrowing support for mypy versions to the latest release.

Pydantic is deeply committed to open source, both in its development and through financial support. The company has pledged to invest a minimum of $2,000 USD per developer annually in open source projects, totaling $30,000 USD for its 14 developers. This funding is part of the Pydantic Open Source Fund, which aims to support critical projects and maintainers that Pydantic relies on for both its commercial and open source endeavors. Established as a side project in 2017, Pydantic has grown significantly, becoming a widely used tool among developers worldwide. The company believes that investing in the open source ecosystem is crucial, akin to historical investments in education, and highlights that a lack of financial support can stifle innovation and progress in the software industry. Pydantic's support is guided by the importance of the projects to their work, the financial need of the projects, and alignment with their values, with a total of $30,700 USD allocated to various projects and maintainers. The company advocates for a change in industry norms, urging others to invest in the open source supply chain, which they argue is essential for sustaining and advancing the software industry.