Python 3.10 reaches end of life in October 2026 and no PromptManager users run it; 3.14 is current and was untested. The test matrix runs 3.11-3.14 on Linux, Windows and macOS, bandit runs on 3.11, and requires-python is >=3.11 so the package no longer claims a version CI does not test. The packaging test drops its 3.10-only tomllib fallback. The required checks follow the matrix (py3.10 -> py3.14).