Table of Contents * Summary – Release Highlights. * New Features. A better interactive interpreter. Improved error messages. Free- Python documentation Python Release Python 3.13.0
Both iOS and Android are now Tier 3 supported platforms, meaning builds are available and patches are accepted, but no CI testing is guaranteed.
print(f"Python version: sys.version") print(f"Free-threaded build: sys._is_gil_disabled()") python 313 release notes verified
What is the actual speed improvement for regular code (without the experimental JIT)? The Python core team publishes the pyperformance benchmark suite. Verified results from Python 3.13 vs 3.12:
The help() system has been improved, and simple commands like exit and quit now work without needing parentheses. 2. Experimental Free-Threaded Mode (No-GIL) Table of Contents * Summary – Release Highlights
Before diving into the technical weeds, here is the verified list of headline features in Python 3.13, confirmed against the official WhatsNew document and the CPython 3.13.0 source code:
Python 3.13 includes a preliminary architecture based on a "copy-and-patch" model. Improved error messages
Defunct; modern applications are written natively in Python 3. cgitb , cgi Replaced by modern web interfaces like WSGI or ASGI . telnetlib
While not enabled by default, this marks the beginning of the end for GIL-related bottlenecks in CPU-bound Python tasks. 2. A Better Interactive Interpreter (REPL)
Improved navigation through command history and "smart pasting" of large code blocks.