Hedera Block Nodes in Private Preview
Block nodes – a new node type being launched in 2026 – will be the decentralized data lake of the Hedera network. In November 2025, the Hashgraph team deployed a private preview of council-operated Block Nodes in previewnet, testnet, and mainnet. This milestone begins the validation of HIP 1056 Block Streams and HIP 1081 Block Nodes. Over the coming months, engineering teams will continue to refine the software and hardware requirements for block nodes. Read the article and learn what this means for you.
Querying Data on Hedera: SDK vs Mirror Node REST API
When building applications on Hedera, a key action you will need to perform is querying entity data, such as account balances or transaction history. This article outlines the available options for querying network data and highlights why the Mirror Node REST API is the recommended method for production applications.
Upcoming Changes to Node Account IDs: What Developers Need to Know
As part of the network evolution and the rollout of the Dynamic Address Book (DAB) on Hedera, upcoming releases of the consensus node software (v0.68 in December, 2025) will enable changes to node account IDs. This article provides an overview of what developers need to know to align their applications with this change.
What is gRPC, gRPC-Web, and Proxies?
Learn what gRPC-Web proxies are, why they are used in the Hiero JS SDK, and the role they play in enabling browser-based Hedera applications.
Hedera Release Cadence Overview
Modern software platforms rely on frequent, reliable updates to stay secure and competitive. This blog provides an overview of Hedera’s release cadence and the reasoning behind its frequent updates.
How Hedera Ensures Quality in Releases of the Hiero Consensus Node Software
The Hedera mainnet is a public network that is mission-critical infrastructure. New features or updates to the Hiero Consensus Node software undergo thorough testing to maintain the enterprise-grade reliability that Hedera provides. This article provides a deep dive into the testing strategy that Hedera follows and how it supports the release cycle.
Updated: Deprecation of the Insecure Hedera Consensus Service (HCS) Mirror Node Endpoints
Hedera continues to enhance security by deprecating insecure HCS mirror node endpoints. An updated timeline has been released, detailing key dates for brownout periods and the final shutdown. Users should migrate promptly to secure endpoints to ensure uninterrupted service. Review the full updated schedule and migration details now.
Estimate Gas Dynamically: Best Practices for Smart Contract Development
Learn why hardcoded gas limits are fragile, how to use dynamic estimation with common EVM tools, practical tips like adding buffers and retry logic, and specific guidance for developers using both JSON-RPC and HAPI.
Local, Self-Hosted, or Third-Party? Selecting a JSON RPC Relay for Your Project
When developing smart contracts on Hedera, choosing the right JSON RPC relay setup significantly impacts your workflow, testing speed, and scalability. Should you use a Hedera Local Node for rapid isolated tests, run your own relay for maximum flexibility, or opt for a managed third-party provider to simplify infrastructure management? Each approach has unique strengths suited to different project stages and requirements—let’s explore how you can strategically select the best JSON RPC relay for your application.
How Hedera Ensures Quality in Releases of the Hiero Consensus Node
Hedera’s structured release process and multi-layered testing approach ensure that each code change is thoroughly vetted. New features to the Hiero Consensus Node codebase must pass through successive stages of validation before they are considered “production-ready.”