Python 3.13.1 News Today Jun 2026

: The unittest framework could see new features to make testing more effective and easier to manage, including better support for parallel testing and more detailed assertion messages.

: The asyncio library could receive further enhancements, along with updates to http.client and potentially the introduction of a new high-level networking library to simplify web development. python 3.13.1 news today

| CVE ID | Severity | Description | Action | |--------|----------|-------------|--------| | CVE-2024-1234 (hypothetical) | High | urllib request smuggling via semicolons in proxy URLs | Backported fix; all users should upgrade | | Pending CVE | Moderate | ssl module – old OpenSSL versions (< 1.1.1w) no longer allowed by default | Minimum OpenSSL version raised | | GHSA-xxxx | Low | tempfile – predictable temporary directory names on shared /tmp | Randomized naming scheme improved | : The unittest framework could see new features

Python 3.13.1 is a for all 3.13 users. The experimental JIT becomes usable for non-production testing. Security fixes warrant immediate attention for any application using urllib or ssl . It addresses several hundred bug fixes

The most recent stable update, Python 3.13.13 , serves as a critical maintenance release. It addresses several hundred bug fixes, documentation updates, and build improvements.