Python 3.13.1 Released Today [exclusive] May 2026

The free-threaded future is coming. The JIT is coming. But today, we got a quieter gift: a Python that crashes less, pastes correctly, and respects your terminal.

Questions? Spotted a bug in 3.13.1 already? Drop a comment or ping me on Mastodon. And yes — I'll update this post if any critical CVEs emerge in the next 72 hours. python 3.13.1 released today

Let me cut through the noise and tell you what actually matters. Python 3.13.1 is a bugfix release — the first in the 3.13 series. If you're running 3.13.0 (released October 7, 2024), you'll want this update. If you're still on 3.12 or earlier, this isn't your cue to upgrade just yet, but it's worth knowing what's coming. The free-threaded future is coming

3.13.1 arrived just after 3.13.0, compared to the typical 90–120 days for past .1 releases. Why? Because 3.13.0 shipped with more experimental flags ( --disable-gil , --enable-experimental-jit ) than any release in a decade. Each flag is its own parallel universe of bugs. Questions