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Heroku Changelog
Additions and changes to the Heroku platform.
August 06, 2025
- Python 3.13.6 is now available
- Default Ruby version for new apps is now 3.3.9
- Python buildpacks updated to pip 25.2, Poetry 2.1.4 and uv 0.8.5
- Python classic buildpack no longer installs SQLite headers and CLI
August 05, 2025
August 01, 2025
July 31, 2025
July 29, 2025
July 24, 2025
July 23, 2025
July 22, 2025
July 18, 2025
July 17, 2025
July 16, 2025
July 15, 2025
July 14, 2025
July 10, 2025
- Python buildpacks updated to uv 0.7.20
- Standard and Performance-tier apps begin migrating to Router 2.0
July 09, 2025
July 08, 2025
July 07, 2025
July 04, 2025
July 01, 2025
- Valkey 8 on Heroku Key-Value Store is generally available
- Updated Heroku Key-Value Store version support policy
- New Common Runtime applications now default to Router 2.0
June 26, 2025
June 25, 2025
- Heroku Remote MCP server now available
- Node.js 24.3.0 and 22.17.0 now available
- Heroku-22 and Heroku-24 stacks updated
June 23, 2025
June 17, 2025
- Go 1.24.4 and 1.23.10 now available
- Python buildpacks updated to uv 0.7.13
- Heroku Connect now supports Salesforce API v64.0