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Python 3.13.0a1

Release Date: Oct. 13, 2023

This is an early developer preview of Python 3.13

Major new features of the 3.13 series, compared to 3.12

Python 3.13 is still in development. This release, 3.13.0a1 is the first of seven planned alpha releases.

Alpha releases are intended to make it easier to test the current state of new features and bug fixes and to test the release process.

During the alpha phase, features may be added up until the start of the beta phase (2024-05-07) and, if necessary, may be modified or deleted up until the release candidate phase (2024-07-30). Please keep in mind that this is a preview release and its use is not recommended for production environments.

Many new features for Python 3.13 are still being planned and written. The most notable change so far are new deprecations, most of which are scheduled for removal from Python 3.15 or 3.16

(Hey, fellow core developer, if a feature you find important is missing from this list, let Thomas know.)

The next pre-release of Python 3.13 will be 3.13.0a2, currently scheduled for 2023-11-21.

More resources


Version Operating System Description MD5 Sum File Size GPG Sigstore
Gzipped source tarball Source release 6aa36a9615eaac850df7b104fba106a8 26485133 SIG .sigstore
XZ compressed source tarball Source release 1a13c086438c52a3bfd125e98e214453 20137588 SIG .sigstore
macOS 64-bit universal2 installer macOS for macOS 10.9 and later e3bceeff6743cf104d7f7ccbb93b2d35 44757938 SIG .sigstore
Windows embeddable package (32-bit) Windows 29047bd198889c601f35de714782f399 9601948 SIG .sigstore
Windows embeddable package (64-bit) Windows 16e3d2b64114beb112eb714e2c2440b1 10748691 SIG .sigstore
Windows embeddable package (ARM64) Windows 3a6b7ab261a24b996601123df7fd8b08 9843954 SIG .sigstore
Windows installer (32 -bit) Windows e6c977571244b8c0d802af2e24b8dc05 25296576 SIG .sigstore
Windows installer (64-bit) Windows Recommended b2ecbc667f28997f7aee9ff52c026978 26607040 SIG .sigstore
Windows installer (ARM64) Windows Experimental f409b1b33320542d5ac10ef24f1f418e 25663400 SIG .sigstore