Cpython Release November 2025 New Jun 2026

In November 2025, the CPython ecosystem was defined by the recent launch of and the early alpha stages of Python 3.15 . This period marked a major shift toward better multicore utilization and modernized developer ergonomics. Python 3.14: The "Pi Day" Milestone

November 2025 is a critical month for security and maintenance due to a major milestone in the Python Release Cycle Python 3.9 End-of-Life (EOL): October 31, 2025 , Python 3.9 officially reached EOL. Action Required: cpython release november 2025 new