Who contributed to FastAPI & Pydantic on May 23, 2026?

2 developers shipped this update, including Viicos and tiangolo.

What were the notable FastAPI & Pydantic updates?

v2.14.0a1 2026-05-22, Add PyEmscripten platform tag support, and 🔥 Remove config files now in central GitHub repo (#15585).

FastAPI & Pydantic

FastAPI and the Pydantic + SQLModel async-Python stack

Pick a date

Topics: Python Full archive →

The Wire · Showcase

PYDANTIC SHIPS 2.14.0a1 WITH PYEMSCRIPTEN SUPPORT AS TIANGOLO REPOS CONSOLIDATE CONFIGS

By RepoJournal · Filed 06:04 UTC on May 23, 2026 · About FastAPI & Pydantic

2 people shipped this

tiangolo @tiangolo 3 cited

Viicos @Viicos 1 cited

Pydantic 2.14.0a1 lands PyEmscripten wheel support for Pyodide environments while FastAPI and SQLModel simultaneously centralize their repository configurations.

Pydantic shipped v2.14.0a1 [1] with a notable addition: PyEmscripten platform tag support [2] that enables pydantic-core to run in Pyodide 314.0 and later, opening the door for WebAssembly-based Python applications to validate data at the edge. This is infrastructure work that signals Pydantic's commitment to non-traditional runtime environments. Across the Tiangolo ecosystem, both FastAPI [3] and SQLModel [4] moved their configuration files to a central GitHub repository in a coordinated push toward simpler, more maintainable project structures. Documentation also received attention in both repos, with simplified guidance on help and support channels [5] and [6]. The coordinated cleanup across three major projects suggests a broader initiative to reduce friction in the Tiangolo suite and make onboarding contributors easier.

Action items

→ Test Pydantic 2.14.0a1 if you're targeting WebAssembly or Pyodide environments pydantic/pydantic [plan]
→ Review centralized config changes if you maintain FastAPI or SQLModel integrations fastapi/fastapi [monitor]

References

[1] v2.14.0a1 2026-05-22 ↗ pydantic/pydantic
[2] Add PyEmscripten platform tag support ↗ pydantic/pydantic
[3] 🔥 Remove config files now in central GitHub repo (#15585) fastapi/fastapi
[4] 🔥 Remove config files now in central GitHub repo ↗ tiangolo/sqlmodel
[5] 📝 Update and simplify docs about help and management ↗ fastapi/fastapi
[6] 📝 Update and simplify docs about help and management ↗ tiangolo/sqlmodel

Quick answers

What shipped in FastAPI & Pydantic on May 23, 2026?: Pydantic 2.14.0a1 lands PyEmscripten wheel support for Pyodide environments while FastAPI and SQLModel simultaneously centralize their repository configurations. In total, 6 commits, 6 pull requests, and 1 releases landed.
Who contributed to FastAPI & Pydantic on May 23, 2026?: 2 developers shipped this update, including Viicos and tiangolo.
What were the notable FastAPI & Pydantic updates?: v2.14.0a1 2026-05-22, Add PyEmscripten platform tag support, and 🔥 Remove config files now in central GitHub repo (#15585).

FASTAPI 0.140.0 CUTS MEMORY OVERHEAD IN DEPENDENCIES

FastAPI shipped a memory optimization that simplifies how dependencies are processed, backed by months of community analysis and benchmarking.

python 9 shipped 1-min read

FastAPI & Pydantic 1 day ago

FASTAPI AND SQLMODEL STANDARDIZE ON UV, PYDANTIC DOCS BLOCKED ON SETTINGS DRIFT

Tiangolo shipped Library Skills documentation across FastAPI and SQLModel while pivoting both projects toward uv as the default package manager, but Pydantic's docs build is failing due to version mismatch in pydantic-settings.

python 10 shipped 1-min read

FastAPI & Pydantic 2 days ago

SQLMODEL FIXES TERMYNAL SCROLL JAR ACROSS DOCS

Interactive code examples in SQLModel documentation no longer hijack your scroll position when you click the restart or fast-forward controls.

python 2 shipped 1-min read

FastAPI & Pydantic 3 days ago

FASTAPI AND PYDANTIC SHIFT TO UV FOR DOCS AND DEPENDENCIES

FastAPI's documentation is standardizing on uv project templates, signaling a broader ecosystem shift toward Python's fastest-growing package manager.

python 7 shipped 1-min read

Elsewhere on the wire

AI Agents about 9 hours ago

CLAUDE OPUS 5 LANDS ACROSS THE STACK

The newest Anthropic model is now live in langchain, Cline, and llama-index, with native support for extended reasoning and 1M context windows.

ai-agents 28 shipped 1-min read

Local LLMs about 9 hours ago

OLLAMA LANDS LAGUNA SUPPORT AND CRUSHES MEMORY LEAKS WHILE SGLANG HITS V0.5.16 WITH CONFIDENCE-DRIVEN SPECULATIVE DECODING

Ollama shipped three critical performance and reliability fixes for Metal residency and concurrent access patterns, while SGL-Lang released 0.5.16 with a new speculative algorithm hitting 383.7 tok/s on DeepSeek-V4.