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Heroku Key-Value Store Now Supports Valkey 8.1 with JSON and Bloom Modules

We’re thrilled to announce the general availability of Valkey v8.1 in Redis OSS compatible Heroku Key-Value Store. This isn’t just an incremental update; it’s a significant leap forward, bringing enhanced performance and greater efficiency. To add to this excitement, we’re bringing powerful new module capabilities to v8.1, with Valkey Bloom and ValkeyJSON.

For years, Heroku customers have relied on our managed in-memory data store services for caching, session management, real-time leaderboards, queueing, and so …

Introducing the Heroku AI Platform as a Service (AI PaaS)

Today, we are pleased to announce the evolution of Heroku to an AI Platform as a Service (AI PaaS). GenAI has changed how we build software (vibe coding), the kind of technology we use (Cursor, LLMs), the type of software we make (agents), and redefined what it means to be a developer in this new world.

In a recent Salesforce study, 84% of developers with AI say it helps their teams complete their projects …

Heroku AI: Heroku Remote MCP Server

Developers can easily scale how autonomous agents interact with infrastructure using the Heroku Remote MCP Server at https://mcp.heroku.com/mcp.

This new remote server expands our earlier stdio-based MCP server and comes with secure OAuth authentication. It’s provides a secure, scalable, and incredibly simple way for agents to interact with the Heroku platform and use tools to perform actions such as creating a Heroku app from your favorite agents such as Claude, Agentforce, or Cursor…

Summary of Heroku June 10 Outage

Beginning at 6:00 UTC, on Tuesday, Jun 10, 2025 Heroku customers began experiencing service disruption, creating up to 24 hours of downtime for many customers. This issue was caused by an unintended system update across our production infrastructure; it was not the result of a security incident, and no customer data was lost. Now that we have fully restored our services, we would like to share more details.

The entire Heroku team offers our deepest …

Heroku Postgres 17 with the New Upgrade Process: Faster Performance, Easier Upgrade

We’re excited to announce the general availability of Heroku Postgres version 17, packed with new features and enhancements to your database performance. And that’s not all – we’re also introducing a game-changing feature that streamlines your upgrade experience. This new method of version upgrade is now the default, so you can try it to upgrade to Postgres 17!

Postgres 17: Powering your applications with enhanced performance and security

Before we dive into the …

Heroku AI: Claude 4 Sonnet is now available

Anthropic’s Claude 4 Sonnet, part of the next generation of Claude models, is now available on Heroku Managed Inference and Agents. This gives developers immediate access to a model designed for coding, advanced reasoning, and the support of capable AI agents. Heroku Managed Inference and Agents expands your AI choices, offering the freedom to build transformative applications with the developer and operational ease Heroku is known for. Claude 4 Sonnet extends what’s possible with …

Heroku AI: Managed Inference and Agents is now Generally Available

Many of the most exciting experiences we’re beginning to rely on every day are powered by AI; whether it’s conversational assistants, personalized recommendations or code generation, these experiences are powered by inference systems and intelligent agents. Behind the scenes, developers offload complex decisions, automate tasks, and compose intelligent applications using large language models and tool execution flows. Together, these AI-powered primitives are becoming a key complement to traditional application development, enabling a new wave of …

Heroku AI: Build and Deploy Enterprise Grade MCP Servers

Agents hold immense power, but their true potential shines when they connect to the real world, fetching data, triggering actions, or leveraging external tools. The Model Context Protocol (MCP) offers a standardized way for AI agents to do this.

MCP is an open protocol that standardizes how applications provide context to LLMs. Think of MCP like a USB-C port for AI applications. Just as USB-C provides a standardized way to connect your devices to various …

Introducing Heroku-Streamlit: Seamless Data Visualization

We’re excited to announce the release of Heroku-Streamlit, a template that makes deploying interactive data visualization applications on Heroku simpler than ever before. Streamlit is an open-source app framework built for machine learning and data science projects. This Streamlit App brings together Heroku’s scalable cloud platform and Streamlit’s intuitive Python-based data application framework. Whether you’re a data scientist, educator, or developer, you can now spin up a cloud-based Streamlit environment in minutes.

What is Heroku-Streamlit?

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Introducing the Official Heroku MCP Server

We’re excited to announce the launch of the Heroku MCP Server, designed to bridge the gap between agent-driven development and Heroku’s AI PaaS. Having defined the platform experience for apps in the cloud, Heroku extends our developer and operator experience to AI capabilities. With the Heroku MCP Server, you can now expose Heroku’s robust platform capabilities as a set of intuitive actions accessible to AI agents through Model Context Protocol (MCP).

The Heroku MCP server enables AI-powered applications like Claude Desktop, Cursor, and Windsurf to directly interface with Heroku, unlocking new levels of automation, efficiency, and intelligence for managing your custom applications.

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