WinPython 2026-03 beta3 (August 8th, 2026)

Change since WinPython 2026-02 b2:

• Infrastructure:
  • Claude Code joining the team as a trainee,
  • wppm and sqlite-bro now published via trusted publishing and with better readme
  • local build is now done from a modern "py" install, cloud build remains on Astral for now
  • whl variant won't be published, as pip-26.2.1 is continuing on pylock.toml
  • published WinPython is now compressed -mx7 to remain below 650Mo
• New Packages: (aiming for local AI)
  • opencv-python, onnxruntime-genai, mssql-python-odbc
• Upgraded Packages:
  • cython-3.2.9, mypy-2.3.0, onnxruntime-1.28.0, duckdb-1.5.5, polars-1.43.2,
  • spyder-6.1.6, pandas-3.0.5, matplotlib-3.11.1- Removed Packages: (make room to stay below 650 Mo)
  • pymongo, geopandas, pyogrio, pyproj, astropy, django
• Differences among builds:
  • slimf (python-3.14 free-threading) has no Qt Stack and is missing still lot of binary packages

Alternative requirements-with-hash256 and lockfiles, and how-to use with pip:
. with a requirement file:
. pip download --dest C:\your_temp_Wheelhouse --no-deps --require-hashes -r requir.64-3_14_7_0slimb3.txt
. pip install --no-deps --no-index --trusted-host=None --find-links=C:\your_temp_Wheelhouse --require-hashes -r requir.64-3_14_7_0slimb3.txt
. with a pylock file:
. pip install --no-deps --require-hashes -r pylock.64-3_14_7_0slimb3.toml --no-warn-script-location