This is Michiel from Hashgraph, bringing you the June developer highlights.
This month marks the launch of the Hello Future: Origin Hackathon, a global competition powered by Hedera with $550,000 in prizes across three phases. Starting July 21 – August 8 with the Origins phase, builders of all levels can create MVPs and compete for a share of $150,000.
To support your journey, we’re highlighting the pre-release version of the Hedera CLI. Further, make sure to catch the latest Technical Community Call filled with insights on workflows and DeFi architectures. And check out the two new HIPs—1215 (scheduled contract calls) and 1217 (modularized contracts call API)—now available for review. Let's dive into these exciting updates and more!
In the June 2025 Technical Community Call, the team discusses the pre-release of the Hedera CLI tool with Michiel Mulders, an inside look at Bonzo Finance with Gaurang Torvekar, and a session on automating workflows using N8N with Milan Wiercx van Rhijn.
Director of Product Management Keith Kowal sits down with Senior Product Manager Ty Smith for an in-depth look at two significant improvements implemented on the network in mainnet release 0.62: Jumbo EthereumTransaction and Zero Cost EthereumTransaction on Success.
Join Jake Hall and special guest Lincoln Murr (Coinbase) for a live-build session where they create a cross-chain dApp: pay in BASE USDC using x402 and receive an airdrop on Hedera. Watch this hands-on demo of seamless Web3 interoperability.
The Hedera Command Line Interface (CLI) simplifies setup, automation, and management of applications on the Hedera network. Its Script Blocks feature enables developers to automate tasks by chaining multiple commands together. Developers can store outputs such as token IDs, topic IDs, and private keys as reusable variables (output:varName). These variables can then be referenced in subsequent commands.
Learn how to deploy smart contracts on the Hiero Local Node using Hardhat. In just 2 minutes, this video tutorial walks you through setting up the Hiero Local Node and configuring your Hardhat project for local development.
Nadine's latest blog shows how REITs can be transformed using Web3 tech for transparent, automated cashflows. Rent is paid in USDC directly to smart contract treasuries, which handle expenses and send surplus to yield-generating vaults. Investors receive real-time, programmable income with optional auto-compounding. DAO governance ensures larger expenses are approved transparently on-chain. This architecture highlights Hedera’s potential to power efficient, next-gen real estate investing.
Catch Ashe Oro and Jake Hall as they live-code AI agents using the Hedera Agent Kit and memejob SDK. Discover how AI meets on-chain execution in this hands-on episode.
HIP‑1215 enables smart contracts to schedule any contract call via the Hedera Schedule Service (HSS) for future execution. This unlocks powerful on-chain automation for things like delayed actions, multi-step workflows, and fully decentralized coordination, without relying on off-chain triggers.
HIP‑1217 improves Hedera’s /api/v1/contracts/call endpoint by replacing the old monolithic EVM implementation with a modular execution flow integrated via the hedera-app library. This ensures contract calls on mirror nodes behave identically to those on consensus nodes, improving gas estimates, error messaging, and support for newer system contracts.
Developer Events
Stay informed about upcoming Hedera developer events with our public events calendar at hedera.com/events.
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