# Python 3.15.0 beta 3 is here!

DevFeed: [Python 3.15.0 beta 3 is here!](<https://devfeed.tech/articles/python-3-15-0-beta-3-is-here-2405.md>)

Original publisher: [Read original article](<https://blog.python.org/2026/06/python-3150-beta-3/>)

Author: Hugo van Kemenade

Published: 2026-06-23T00:00:00Z

Content type: release

Language: en

Sources: [Python Insider](<https://devfeed.tech/sources/python-insider.md>)

Topics: [Python](<https://devfeed.tech/topics/python.md>), [releases](<https://devfeed.tech/topics/releases.md>), [Compiler](<https://devfeed.tech/topics/compiler.md>), [observability](<https://devfeed.tech/topics/observability.md>)

Tags: [bug](<https://devfeed.tech/tags/bug.md>), [jit](<https://devfeed.tech/tags/jit.md>), [linux](<https://devfeed.tech/tags/linux.md>), [macos](<https://devfeed.tech/tags/macos.md>), [maintainers](<https://devfeed.tech/tags/maintainers.md>), [observability](<https://devfeed.tech/tags/observability.md>), [python](<https://devfeed.tech/tags/python.md>), [releases](<https://devfeed.tech/tags/releases.md>), [testing](<https://devfeed.tech/tags/testing.md>), [windows](<https://devfeed.tech/tags/windows.md>)

## AI overview

Python 3.15.0 beta 3 is the third of four planned beta releases, with bug fixes, build improvements, documentation changes, and contributions from 86 contributors. The preview introduces or advances features including lazy imports, profiling tools, frame pointers for observability, UTF-8 by default, package startup configuration, and an upgraded JIT compiler.

## Source excerpt

The penultimate 3.15 beta is out!