This is Michiel from Hashgraph, bringing you the May developer highlights.
This month, we’re excited to introduce two new tools: the Hedera Contract Builder, a browser-based IDE for deploying smart contracts without setup, and the Hedera AI Studio, an open-source toolkit for building verifiable AI agents on-chain.
In our latest technical community call, we explored HIP-551 (Batch Transactions), HIP PR-1081 (Block Node), and HIP PR-1056 (Block Streams), and provided an overview of the newly launched Hedera Contract Builder.
We've also published new tutorials and blog posts, and shared an updated timeline for the HCS mirror node endpoint deprecation. Let's dive into these exciting updates and more!
In the May 2025 Technical Community Call, the team covered HIP 551 (Batch Transactions), HIP PR-1081 (Block Node), and HIP PR-1056 (Block Streams), including an overview of the recently launched Hedera Contract Builder.
Director of Product Management Keith Kowal is joined by Senior Product Manager Ty Smith and President of Hashgraph Online Michael Kantor to explore HIP-991 in-depth and what it enables for enterprises, developers, and agentic AI on Hedera.
Ty Smith, Senior Product Manager at Hashgraph, highlights how Hedera provides fast, transparent, and scalable infrastructure tailored for AI applications. With innovations like HIP-991 for monetizing AI services and HIP-551 for atomic transaction flows, Hedera enhances data integrity and decentralized communications.
For Hedera projects, you can start with the Local Node for fast, offline development. As you scale, a self-hosted relay offers full control for production needs. For a hassle-free option, third-party services provide managed access with minimal setup. Explore a detailed breakdown of all three options.
This blog post explores the tokenization of real estate using the ERC-3643 standard. This standard enables compliant, permissioned tokens that represent fractional ownership of physical assets, integrating identity verification and regulatory compliance directly into the token's smart contract.
Learn how to upgrade your ERC-721 NFT smart contract using OpenZeppelin’s UUPS proxy pattern with Hardhat. This step-by-step guide walks you through deploying, modifying, and upgrading your contract on Hedera.
In the latest Hedera Vibe Code stream using Replit, Jay Cool and Ashe Oro collaboratively develop a GameFi application—a flying simulator where players navigate through rings to score points. Ashe emphasizes the importance of incrementally adding requirements during development, rather than introducing all specifications at once, to maintain flexibility and responsiveness throughout the coding process.
HIP-991 supercharges the Hedera Consensus Service by introducing permissionless, revenue-generating topic IDs. This powerful upgrade transforms HCS into a native monetization engine—empowering developers, AI agents, and businesses to programmatically generate income with fine-grained control and flexibility.
With the implementation of HIP-1084: Zero Cost EthereumTransaction on Success, Hedera is introducing an updated transaction fee model that will eliminate charges for successful EthereumTransactions submitted by relay operators. This change brings Hedera's fee structure more in line with Ethereum while maintaining network security and improving the network experience for relay operators.
Developer Events
Stay informed about upcoming Hedera developer events with our public events calendar at hedera.com/events.
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