4.0.0

We are happy to present Falcon 4.0, a new major version of the framework that brings a couple of commonly requested features including support for matching multiple path segments (using PathConverter), and a fully typed codebase. (Please read more about typing in the notes on RtD.)

🐍 Falcon 4.0.0 on PyPI
📚 Changelog on RtD

The timeframe for Falcon 4.0 was challenging due to the need to balance our high standards with the CPython 3.13 timeline. We aimed to deliver the main development branch in this release, without resorting to another compatibility micro update (as we did with Falcon 3.1.1-3.1.3). Following community feedback, we also want to improve our overall release schedule by shipping smaller increments more often. To support this goal, we have made several tooling and testing improvements: the build process for binary wheels has been simplified using cibuildwheel, and our test suite now only requires pytest as a hard dependency. Additionally, you can run pytest against our tests from any directory. We hope that these changes should also benefit packaging Falcon in Linux distributions.

As with every SemVer major release, we have removed a number of previously deprecated functions, classes, compatibility shims, as well as made other potentially breaking changes that we could not risk in a minor version. If you have been paying attention the deprecation warnings from the 3.x series, the impact should be minimal, but please do take a look at the list of breaking changes on RtD.

This release would not have been possible without the numerous contributions from our community. This release alone comprises a number of pull requests submitted by a group of 30 talented individuals. What is more, we were particularly impressed by the high-quality discussions and code submissions during our EuroPython 2024 Sprint. Some notable sprint contributions include CHIPS support, and a new WebSocket Tutorial, among others. In fact, according to the statistics on GitHub, we are thrilled to report that the total number of Falcon contributors has now exceeded 200. We find it fascinating that our framework has become a collaborative effort involving so many individuals, and would like to thank everyone who has made this release possible!