The final post in the Unified Balance Kit series covers the preflight checks and recovery paths apps need around spend(), especially when delegated flows or mint-side failures can affect execution.

Transaction memos on Arc give developers and businesses a way to attach structured context to onchain actions on Arc. That makes payments, payouts, deposits, withdrawals, and other financial workflows easier to reconcile, attribute, and connect to offchain systems.

Part three of the Unified Balance Kit series focuses on partial liquidity and fallback rules for apps that start from available USDC but still need to validate each execution route.

Part two of the Unified Balance Kit series shows how to separate ready USDC from pending and in-motion funds so payment and treasury apps do not treat every visible balance as spendable.

Uniswap is coming to Arc Mainnet. For builders, this matters because liquidity is not a secondary feature of an onchain economy. It is part of the application layer. Wallets need swap paths. DeFi protocols need routing and pool access.

Arc Testnet is upgrading to v0.7.2 with a hardfork on June 18, 2026 at 12:00 UTC. The developer-facing features are transaction memos, which let builders attach payment references directly onchain, and batch transactions, which let multiple calls execute in one transaction. Node operators must upgrade to v0.7.2 before activation or their nodes will desync from Arc Testnet.

A look at the thinking behind Arc's new privacy whitepaper, and the features that set our approach apart from every other swing at onchain privacy.

Building Bermuda’s Onchain Economy | The Government of Bermuda (David Burt) / Circle (Heath Tarbert, Kash Razzaghi) | Builder Series What does it take to build the world's first fully on-chain national economy? In this conversation, Premier David Burt joins Circle leaders Heath Tarbert and Kash Razzaghi for a discussion on Bermuda’s digital finance journey — from the Digital Asset Business Act to stablecoins, tokenized funds, the Digital Bermuda Dollar initiative, and the country’s vision for a fully onchain national economy. Together, they explore how trusted regulation, public-private collaboration, and practical digital financial infrastructure can support lower-cost payments, financial inclusion, local business growth, and Bermuda’s long-term economic competitiveness. Topics covered include: 00:00 Bermuda’s role as an early leader in digital asset regulation 02:35 The vision for becoming a fully onchain national economy 03:15 Stablecoins, USDC, and tokenized financial products 04:19 How digital finance can support merchants, residents, and institutions 06:08 The Digital Bermuda Dollar initiative 08:19 Why Bermuda is an important jurisdiction for Circle’s global strategy 14:39 What comes next for real-world adoption in Bermuda Featuring: Premier David Burt, Government of Bermuda Heath Tarbert, Circle Kash Razzaghi, Circle Hosted by Sam Sealey The future of finance will be built where trusted policy, secure infrastructure, and real-world adoption come together. Bermuda is showing what that can look like in practice.