Python 3.15.0a8, 3.14.4 and 3.13.13 are out!

Author: hugovk

content/posts/python-3150a8-3144-31313/index.md

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+---
+title: 'Python 3.15.0a8, 3.14.4 and 3.13.13 are out!'
+publishDate: '2026-04-07'
+author: Hugo van Kemenade
+description: 'A final alpha and two bug fixes are waiting your upgrade.'
+tags:
+  - releases
+published: true
+---
+
+## Python 3.15.0 alpha 5
+
+*This is an early developer preview of Python 3.15*
+
+### Major new features of the 3.15 series, compared to 3.14
+
+Python 3.15 is still in development. This release, 3.15.0a8, is the final planned alpha release.
+
+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 (2026-05-05) and, if necessary, may be modified or deleted up until the release candidate phase (2026-07-28). Please keep in mind that this is a preview release and its use is **not** recommended for production environments.
+
+Many new features for Python 3.15 are still being planned and written. Among the new major new features and changes so far:
+
+* [PEP 810](https://docs.python.org/3.15/whatsnew/3.15.html#whatsnew315-lazy-imports): Explicit lazy imports
+* [PEP 814](https://docs.python.org/3.15/whatsnew/3.15.html#whatsnew315-frozendict): `frozendict` built-in type
+* [PEP 799](https://docs.python.org/3.15/whatsnew/3.15.html#whatsnew315-sampling-profiler): A new high-frequency, low-overhead, statistical sampling profiler and dedicated profiling package
+* [PEP 798](https://docs.python.org/3.15/whatsnew/3.15.html#whatsnew315-unpacking-in-comprehensions): Unpacking in comprehensions with `*` and `**`
+* [PEP 686](https://docs.python.org/3.15/whatsnew/3.15.html#whatsnew315-utf8-default): Python now uses UTF-8 as the default encoding
+* [PEP 728](https://peps.python.org/pep-0728/): `TypedDict` with typed extra items
+* [PEP 747](https://docs.python.org/3.15/whatsnew/3.15.html#typing): Annotating type forms with `TypeForm`
+* [PEP 782](https://docs.python.org/3.15/whatsnew/3.15.html#whatsnew315-pybyteswriter): A new `PyBytesWriter` C API to create a Python bytes object
+* The [JIT compiler](https://docs.python.org/3.15/whatsnew/3.15.html#whatsnew315-jit) has been significantly upgraded, with 6-7% geometric mean performance improvement on x86-64 Linux over the standard interpreter, and 12-13% speedup on AArch64 macOS over the tail-calling interpreter
+* The official Windows 64-bit binaries now [use the tail-calling interpreter](https://docs.python.org/3.15/whatsnew/3.15.html#whatsnew315-windows-tail-calling-interpreter)
+* [Improved error messages](https://docs.python.org/3.15/whatsnew/3.15.html#improved-error-messages)
+* <small>(Hey, **fellow core team member,** if a feature you find important is missing from this list, let Hugo know.)</small>
+
+The next pre-release of Python 3.15 will be 3.15.0b1, scheduled for 2026-05-05.
+
+### More resources
+
+* [Online documentation](https://docs.python.org/3.15/)
+* [PEP 790](https://peps.python.org/pep-0790/), 3.15 release schedule
+* Report bugs at [https://github.com/python/cpython/issues](https://github.com/python/cpython/issues)
+* [Help fund Python directly](https://www.python.org/psf/donations/python-dev/) (or via [GitHub Sponsors](https://github.com/sponsors/python)) and support [the Python community](https://www.python.org/psf/donations/)
+
+
+## Python 3.14.4
+
+Python 3.14.4 is the fourth maintenance release of 3.14, containing around 337 bugfixes, build improvements and documentation changes since 3.14.3.
+
+https://www.python.org/downloads/release/python-3144/
+
+## Python 3.13.13
+
+Python 3.13.13 is the lucky thirteenth maintenance release of 3.13, containing around 200 bugfixes, build improvements and documentation changes since 3.13.12.
+
+https://www.python.org/downloads/release/python-31313/
+
+
+## Enjoy the new release
+
+Thanks to all of the many volunteers who help make Python development and these releases possible! Please consider supporting our efforts by volunteering yourself or through organisation contributions to the [Python Software Foundation](https://www.python.org/psf/donations/).
+
+Your release team,<br>
+Hugo van Kemenade<br>
+Thomas Wouters<br>
+Ned Deily<br>
+Steve Dower<br>
+Łukasz Langa