Heroku Changelog

Additions and changes to the Heroku platform.

April 13, 2026

• Heroku Build and CI Logs Retention Period Change
• New --start-cmd flag in heroku local command
• Python buildpacks updated to Pipenv 2026.5.2, Poetry 2.3.4 and uv 0.11.6

April 08, 2026

• Heroku AI now supports Stable Image Core model
• Go 1.25.9 and 1.26.2 are now available
• Heroku-22 and Heroku-24 stacks updated
• JRuby version 10.0.5.0 is now available

April 07, 2026

• Python 3.14.4 and 3.13.13 are now available

April 06, 2026

• Updates to the Heroku AppLink dashboard

April 02, 2026

• Node.js 25.9.0 is now available
• Python buildpacks updated to Pipenv 2026.5.1, Poetry 2.3.3 and uv 0.11.3

March 27, 2026

• Ruby version 3.2.11 is now available

March 26, 2026

• Ruby version 3.3.11 is now available

March 25, 2026

• Node.js 25.8.2, 24.14.1, 22.22.2, and 20.20.2 now available

March 24, 2026

• Heroku-22 and Heroku-24 stacks updated

March 18, 2026

• Heroku CLI v11.0.0 now available
• Data Maintenance CLI commands are now in Heroku CLI
• OpenJDK 26 is now available for Java, Scala and Clojure apps

March 17, 2026

• PHP updates - March 2026
• Ruby version 4.0.2 is now available

March 13, 2026

• Python buildpacks updated to uv 0.10.9
• .NET SDK 10.0.105 and 10.0.201 are now available

March 12, 2026

• Node.js 25.8.1 is now available

March 11, 2026

• Ruby version 3.4.9 is now available

March 10, 2026

• .NET SDK 8.0.125, 8.0.419, 9.0.115, 9.0.312, 10.0.104 and 10.0.200 are now available
• Heroku-22 and Heroku-24 stacks updated
• Support for dep, gb, glide, godep, and govendor removed from the Go buildpack

March 06, 2026

• JRuby version 10.0.4.0 is now available
• Go 1.25.8 and 1.26.1 now available

March 05, 2026

• Node.js 25.8.0, 22.22.1, and 20.20.1 now available

March 04, 2026

• Build timeouts increased
• Default slug size limit increased to 1000 MB

March 03, 2026

• Python 3.12.13, 3.11.15 and 3.10.20 are now available
• Python buildpacks updated to pip 26.0.1 and uv 0.10.7

February 25, 2026

• Heroku Connect now supports Salesforce API v66.0
• Node.js 25.7.0 and 24.14.0 now available

February 24, 2026

• Heroku Git and Container Registry TLS policy update
• Heroku-22 and Heroku-24 stacks updated

February 18, 2026

• Heroku AI now supports DeepSeek V3.2, GLM 4.7, Kimi K2.5, and MiniMax M2.1 models
• Heroku AI now supports Cohere Embed V4