Introducing Jumbo Ethereum Transactions: Driving EVM-Compatibility on Hedera

HIP-1086 introduces Jumbo Ethereum transactions, expanding callData limits from 6KB to 128KB for enhanced EVM compatibility. This milestone eliminates complex multi-step deployments, enabling developers to deploy large smart contracts in single transactions while maintaining Hedera’s predictable fees and superior performance advantages.
Quarterly Events Highlights | Q2 2025 (April – June)

In Q2 of 2025, Hedera hosted and participated in 26 events, meetups, hackathons and more in 14 cities across North America, Europe, the Middle East, and Asia-Pacific – further fostering innovation in AI, real-world assets (RWAs), tokenization, and sustainability.
Decentralization by Design

There is currently much discussion of decentralization of blockchains, and the implications for trust, control, and whether their native coins should be viewed as securities or commodities within regulatory frameworks. So it is useful to think through why decentralization is desirable, and what a useful definition of it would be.
An Early Look at the Hedera CLI: Simplify, Automate, and Accelerate Development on Hedera

The Hedera CLI is a command-line tool built for developers working with the Hedera network. It streamlines tasks such as creating accounts, managing tokens, deploying smart contracts, and interacting with the Hedera Consensus Service. The tool supports script automation, letting you store outputs like account IDs or private keys as reusable variables, simplifying complex operations and speeding up your development process.
Blockchain for Energy (B4E) Joins Hedera Council to Advance Emissions Reporting Standards

HOUSTON, TX – JUNE 24, 2025 – Blockchain for Energy (B4E), a non-profit consortium of leading global energy companies, has joined Hedera Council to drive progress in sustainability and emissions reporting.
Reimagining REIT Cashflows: Managing Revenue and Expenses in Web3

In this article, we’ll show how rental income flows through vaults, how investors can earn compounding yield, and how proposals and payments are managed transparently on-chain using our Web3-native REIT architecture. Let’s dive in!
Arrow Electronics Joins Hedera Council to Advance Supply Chain Solutions

June 4, 2025 — Centennial, Colo. — Arrow Electronics (NYSE: ARW), a global distributor that sources and engineers technology solutions for thousands of leading manufacturers and service providers, has joined Hedera Council to support decentralized governance of the Hedera Network, and to develop a global supply chain initiative focused on standards and efficiency.
Hedera Developer Highlights May 2025

This month, we’re launching two powerful new tools for developers: the Hedera Contract Builder and the Hedera AI Studio. The May technical community call dives into HIP-551, HIP PR-1081, and HIP PR-1056, with an overview of the new Contract Builder. You’ll also find a detailed look at HIP-991 for monetizing AI services, and new resources like an ERC-721 upgrade tutorial and JSON-RPC relay selection guide.
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.