Releasesby IbisJRuby version 10.0.7.0 is now available
Update2 weeks agoUnverifiedAdded Oct 20, 2026
JRuby v10.0.7.0 is now available on Heroku. To run your app using this version of Ruby, add the following ruby directive to your Gemfile: ruby "3.4.5", engine: "jruby", engine_version: "10.0.7.0" The JRuby release notes can be found on the JRuby website .
More Heroku releases
Every Heroku releaseAPI Documentation & Schema Updates
API Documentation & Schema Updates Platform API Documentation: Updated overall documentation and schema for the Enterprise Account API Enterprise Account Creation: Added the required_email_domains parameter to the Enterprise Account creation endpoint. Use this field to restrict organization membership to specific email domains.
Heroku-22, Heroku-24 and Heroku-26 stacks updated
We have updated the heroku-22 , heroku-24 and heroku-26 stacks to pick up security and bug fixes in upstream packages. The new base images for each stack will roll out automatically to the Common Runtime over the next 48 hours, followed by Private Spaces .
Node.js 26.11.0 and 26.11.1 now available
Node.js versions 26.11.0 and 26.11.1 have been made available for builds on Heroku. For additional information, please see our article on Node.js Support .
Heroku Postgres Advanced is generally available
Heroku Postgres Advanced -tier databases are now generally available. The new tier brings increased storage capacity and scalability, decoupled compute and storage, follower pools distributing read load, and logical replication. You can provision databases on this new tier.
Python 3.15 is now available
Python 3.15.0 is now available for use by Python apps on Heroku. See the Python 3.15.0 release announcement and What’s New In Python 3.15 to learn more about the new major version. See Specifying a Python Version for details on how to configure the Python version for your app.
Go 1.27.2 and 1.26.9 are now available
Go 1.27.2 and 1.26.9 are now available for use by Go apps on Heroku. In addition, we have updated the Go 1.27 and 1.26 version aliases to resolve to these new Go patch versions. See Go Versions for details on how to configure the Go version for your app.
Upcoming migration from ZooKeeper to KRaft for Apache Kafka on Heroku
On October 19, 2026, we’ll begin migrating Apache Kafka on Heroku cluster infrastructure from ZooKeeper to KRaft. This change modernizes how clusters manage their internal metadata. Heroku will notify you via email when maintenance is scheduled to perform this migration on your Kafka cluster. No action is required from you.
Python buildpacks updated to Poetry 2.5.1 and uv 0.12.21
We have updated the package managers used during the build of Python apps as follows: Poetry updated from 2.4.2 to 2.5.1 ( changelog ) uv updated from 0.12.9 to 0.12.21 ( changelog )
Also shipped on Oct 7, 2026
Heroku in October 2026The microVM sandbox type is now Generally Available (GA) with GKE Sandbox in clusters that run version...
The microVM sandbox type is now Generally Available (GA) with GKE Sandbox in clusters that run version 1.37.0-gke.4713000 and later. MicroVM sandboxes provide hardware virtualization and isolation for untrusted workloads, AI agent runtimes, and multi-tenant environments.
SSH for Cloud Run services and instances is in Preview
SSH for Cloud Run services and instances is in Preview . Use this feature to establish a secure, interactive shell connection to your running instances.
Set credit usage limits and alerts for your workspace
Workspace admins and owners on paid plans can now set usage limits and alerts that keep shared credits under control. Set a credit threshold for the whole workspace, a project, a member, or, on Business and Enterprise plans, a group or an access token, and choose what happens when usage reaches it: an email or in-app alert, or a block that stops building or...
Faster inline text edits
Simple text changes you make with Edit text inline in the preview toolbar now apply in a few seconds. Text that your app builds from data or translates still takes a little longer.
Gemini 3.7 Flash is deprecated for your app's AI features
Google is retiring Gemini 3.7 Flash ( google/gemini-3.7-flash ), so it is now marked deprecated for your app's AI features and stops working on January 28, 2027. Apps that use it keep working until then, and Lovable no longer picks it for new AI features.
The Cost Analysis tab of the Billing page now includes Serverless Inference Live Usage, which lists the...
The Cost Analysis tab of the Billing page now includes Serverless Inference Live Usage, which lists the estimated cost and token counts of your Serverless Inference requests by model and model access key, for both teams and organizations. …