Deprecated
Sifflet CLI v0.6.0 — Python version support update
1 day ago by Baptiste Azéma
Starting with Sifflet CLI v0.6.0, the CLI requires Python 3.10 or newer. Python 3.8 and 3.9 are no longer supported.
Why
Both Python 3.8 and 3.9 have reached end-of-life upstream (3.8 in October 2024, 3.9 in October 2025) and no longer receive security updates from the Python core team.
What you need to do
- If you are on Python 3.10 or newer: nothing to do.
pipx upgrade siffletwill keep working as usual. - If you are on Python 3.8 or 3.9: upgrade your Python interpreter to 3.10+ and reinstall the CLI, for example:
pipx install --python python3.10 sifflet
If you stay on Python 3.8 or 3.9, future CLI updates will no longer install, pipx upgrade sifflet will fail. If you keep using sifflet==0.5.0, it will not receive new features or bug fixes.
Who is most affected
Customers using the Sifflet CLI for any task, like Monitor as Code. The updated requirements are also reflected in our public documentation.