Heroku Blog
- Engineering
- Last Updated: November 04, 2025
- Richard Schneeman, Chap Ambrose
The Performance Penalty of Repeated Connections
Before the latest improvements to the Heroku Router, every connection between the router and your application dyno risked incurring the latency penalty of a TCP slow start . To understand why this is a performance bottleneck for modern web applications, we must look at the fundamentals of the Transmission Control Protocol (TCP) and its history with HTTP.
Maybe you’ve heard of a keep-alive connection, but haven’t thought much about what it is or why they exist. In this post, we’re going to peel away some networking abstractions in order to explain what a keep-alive…
- Engineering, News
- Last Updated: October 30, 2025
- Vivek Viswanathan
Imagine this: Your sales team is about to close a major deal. They’re building a custom quote in your app, but they need to see the latest product line items from an Opportunity in Salesforce. They refresh. And wait. The data is stale. The quote gets generated, but it’s missing the latest addition to the deal since your data didn’t sync yet.
This isn’t a hypothetical problem. It’s a frustrating reality for developers who have been limited by legacy data synchronization technology. You’ve told us you need faster, more comprehensive data sync, particularly Accelerated Polling support for crucial but unsupported objects…
- News
- Last Updated: October 14, 2025
- Betty Junod
Today’s businesses face a tremendous amount of complexity in tools, data silos, and systems that teams need to navigate to deliver unique and engaging experiences to their customers. Meanwhile developers are only able to spend a fraction of their time coding due to the cognitive load of technology complexity, constant context switching, and figuring out how to adopt AI effectively into their daily work.
The Heroku AI PaaS is the Cloud Native Application Platform from Salesforce to seamlessly build and scale any custom service for greenfield app development, modernizing existing apps, and as part of a Salesforce cloud implementation.
At Dreamforce, we are excited to introduce new innovations to our AI PaaS that expand the capabilities of every Salesforce org and empower new builders. Today’s announcement includes innovations in three key areas:
- Expanding the capabilities of every Salesforce org with the flexibility of more pro-code and elastic compute with enterprise performance, scale and security enhancements.
- Enhancing and expanding the data foundation to empower our customers’ modern and AI app strategies.
- Delivering new vibes using AI to make the process of building new applications as accessible as sending a text message.
- News
- Last Updated: October 14, 2025
- Jonathan Brown, Su Glasgo
- News
- Last Updated: October 08, 2025
- Anush DSouza, Rand Arete
Introducing the pilot of Heroku Vibes , your collaborative agent for turning ideas into running apps. For those who have been with us on this journey for a while, the name “Heroku Garden” might stir up a bit of nostalgia. It was the web experience that enabled developers to become immediately productive in creating and deploying Rails applications with a turnkey, opinionated environment, with the goal of making software easier and more accessible. That seed of an idea that would grow into the platform powering millions of mission-critical apps. We’re thrilled to announce the pilot of Heroku Vibes, a…
- News
- Last Updated: September 17, 2025
- Anush DSouza
Ever found yourself in the endless loop of tweaking a prompt, running your code, and waiting to see if you finally got the output you wanted? That slow, frustrating feedback cycle is a common headache for AI developers. What if you could speed that up and get back to what you do best? Let’s focus on building amazing applications.
We're excited to introduce Heroku AI Studio, a new set of tools designed to streamline your generative AI development from prompt to production. We've focused on creating a more intuitive and efficient workflow, so you can focus on innovation instead of wrestling with your development environment. When using the Heroku Managed Inference and Agents add-on, this new tool is about to become an essential part of your workflow.
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