Releasesby GlyphOpenJDK 27.0.1.0.3, 25.0.5.0.3, 21.0.13.0.3 and 17.0.21.0.3 now available
Heroku’s support for Java, Scala, Clojure, and Groovy now uses the following default versions for each supported major version: Java 17 is now 17.0.21.0.3 Java 21 is now 21.0.13.0.3 Java 25 is now 25.0.5.0.3 Java 27 is now 27.0.1.0.3 Please visit the Dev Center for more information on Java version support .
Also shipped Oct 29, 2026Heroku in October 2026 →
Monte Carlo's Terraform provider is now on the OpenTofu registry
Monte Carlo has published its Terraform provider and agent modules to the OpenTofu registry, enabling users to manage Monte Carlo infrastructure as code using OpenTofu.
REST API v2 (Public preview): onboard Monte Carlo from your AI tool, Terraform or a script
Monte Carlo's REST API v2 is now in public preview, enabling automated onboarding and deployment of collection agents via scripts, Terraform, or AI tools.
Gemini-powered Explore summaries in Looker are generally available
The ability to generate summaries of Looker Explores using Gemini assistance is now generally available.
Dashboard relationships are now generally available
Dashboard relationships, which enable multi-fact data models in AI/BI dashboards, are now generally available.
Looker bullet chart visualization is generally available
The bullet chart visualization type is now generally available in Looker, allowing users to evaluate metric performance against targets and thresholds.
Xero connector is available in Beta
The managed Xero connector is now available in beta for Databricks Lakeflow Connect, supporting incremental ingestion of accounting data.
More from HerokuEvery Heroku release →
PHP updates - Late October 2026
The following PHP extensions have been added or updated: ext-blackfire 2026.10.4 ext-grpc 1.85.0 ext-newrelic 12.12.0.41 The following new Composer versions are now available for use during builds : Composer 2.2.31 Composer 2.11.0 The blackfire CLI agent program used by ext-blackfire has been updated to version 2026.10.2.
Node.js 26.13.0 and 24.22.2 now available
Node.js versions 26.13.0 and 24.22.2 have been made available for builds on Heroku. For additional information, please see our article on Node.js Support .
Heroku-22, Heroku-24 and Heroku-26 stacks updated
Heroku has updated its stack base images to include security and bug fixes. The Heroku-22 stack is now deprecated and scheduled for end-of-life on April 30, 2027.
Apache Kafka 2.8 and 3.7 have reached end-of-life
Heroku has deprecated support for Apache Kafka versions 2.8 and 3.7, and is taking action on remaining clusters for non-compliance.
Ruby apps now default to Node version 24.22.1
Heroku Ruby buildpacks now default to Node version 24.22.1 for applications without a specified Node version.
Python 3.11 support is deprecated
Heroku has deprecated support for Python 3.11, with removal from buildpacks scheduled for January 2028.
Python 3.10 has reached its upstream end-of-life
Python 3.10 has reached its upstream end-of-life and will be removed from Heroku buildpacks on January 6, 2027.
Python 3.15.2, 3.14.10, 3.13.18, 3.12.16 and 3.11.18 are now available
Heroku has added support for the latest patch versions of Python 3.11 through 3.15.