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Python buildpack updated to Poetry 2.1.1

Change effective on 26 February 2025

We have updated the package managers used during the build of Python apps as follows:

Poetry updated from 2.0.1 to 2.1.1 (changelog)

Heroku’s buildpacks are open source. To subscribe to Python buildpack release notifications or provide feedback, see these repositories on GitHub:

Python classic buildpack (used by Cedar-generation apps)
Python Cloud Native Buildpack (used by Fir-generation apps)

Node.js 23.9.0 now available Heroku-20, Heroku-22 and Heroku-24 stacks updated